Home / 719,024.31-992,274.30-396,755.19

Finding the Fourth Proportional to 719,024.31, 992,274.30 and 396,755.19

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Solution

The fourth proportional to 719,024.31, 992,274.30 and 396,755.19 is: 547,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,024.31 : 992,274.30 = 396,755.19 : x
  2. Step 2: Convert to fraction form
    719,024.31/992,274.30 = 396,755.19/x
  3. Step 3: Cross multiply
    719,024.31x = 992,274.30 × 396,755.19
  4. Step 4: Simplify right side
    719,024.31x = 393,689,978,428.62
  5. Step 5: Solve for x
    x = 393,689,978,428.62/719,024.31
  6. Step 6: Final answer
    x = 547,533.61

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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.