Home / 898,147,984.40-1,347,221,976.60-656,283,280.40

Finding the Fourth Proportional to 898,147,984.40, 1,347,221,976.60 and 656,283,280.40

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Solution

The fourth proportional to 898,147,984.40, 1,347,221,976.60 and 656,283,280.40 is: 984,424,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,147,984.40 : 1,347,221,976.60 = 656,283,280.40 : x
  2. Step 2: Convert to fraction form
    898,147,984.40/1,347,221,976.60 = 656,283,280.40/x
  3. Step 3: Cross multiply
    898,147,984.40x = 1,347,221,976.60 × 656,283,280.40
  4. Step 4: Simplify right side
    898,147,984.40x = 884,159,258,230,019,968
  5. Step 5: Solve for x
    x = 884,159,258,230,019,968/898,147,984.40
  6. Step 6: Final answer
    x = 984,424,920.60

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Double scale
Find fourth proportional to 898,147,985.40, 1,347,221,978.10 and 656,283,281.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.