Home / 719,335.67-992,683.29-397,045.85

Finding the Fourth Proportional to 719,335.67, 992,683.29 and 397,045.85

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Solution

The fourth proportional to 719,335.67, 992,683.29 and 397,045.85 is: 547,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,335.67 : 992,683.29 = 397,045.85 : x
  2. Step 2: Convert to fraction form
    719,335.67/992,683.29 = 397,045.85/x
  3. Step 3: Cross multiply
    719,335.67x = 992,683.29 × 397,045.85
  4. Step 4: Simplify right side
    719,335.67x = 394,140,775,695.43
  5. Step 5: Solve for x
    x = 394,140,775,695.43/719,335.67
  6. Step 6: Final answer
    x = 547,923.31

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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.