Home / 718,541.74-991,542.52-412,402.74

Finding the Fourth Proportional to 718,541.74, 991,542.52 and 412,402.74

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Solution

The fourth proportional to 718,541.74, 991,542.52 and 412,402.74 is: 569,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,541.74 : 991,542.52 = 412,402.74 : x
  2. Step 2: Convert to fraction form
    718,541.74/991,542.52 = 412,402.74/x
  3. Step 3: Cross multiply
    718,541.74x = 991,542.52 × 412,402.74
  4. Step 4: Simplify right side
    718,541.74x = 408,914,852,129.39
  5. Step 5: Solve for x
    x = 408,914,852,129.39/718,541.74
  6. Step 6: Final answer
    x = 569,089.91

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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.