Home / 719,435.70-992,821.44-397,146.02

Finding the Fourth Proportional to 719,435.70, 992,821.44 and 397,146.02

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Solution

The fourth proportional to 719,435.70, 992,821.44 and 397,146.02 is: 548,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,435.70 : 992,821.44 = 397,146.02 : x
  2. Step 2: Convert to fraction form
    719,435.70/992,821.44 = 397,146.02/x
  3. Step 3: Cross multiply
    719,435.70x = 992,821.44 × 397,146.02
  4. Step 4: Simplify right side
    719,435.70x = 394,295,083,466.67
  5. Step 5: Solve for x
    x = 394,295,083,466.67/719,435.70
  6. Step 6: Final answer
    x = 548,061.60

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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.