Home / 719,409,512.93-992,842,807.71-571,947,589.30

Finding the Fourth Proportional to 719,409,512.93, 992,842,807.71 and 571,947,589.30

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Solution

The fourth proportional to 719,409,512.93, 992,842,807.71 and 571,947,589.30 is: 789,333,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,409,512.93 : 992,842,807.71 = 571,947,589.30 : x
  2. Step 2: Convert to fraction form
    719,409,512.93/992,842,807.71 = 571,947,589.30/x
  3. Step 3: Cross multiply
    719,409,512.93x = 992,842,807.71 × 571,947,589.30
  4. Step 4: Simplify right side
    719,409,512.93x = 567,854,050,425,097,344
  5. Step 5: Solve for x
    x = 567,854,050,425,097,344/719,409,512.93
  6. Step 6: Final answer
    x = 789,333,530.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.