Home / 526,901.18-727,123.56-285,183.71

Finding the Fourth Proportional to 526,901.18, 727,123.56 and 285,183.71

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Solution

The fourth proportional to 526,901.18, 727,123.56 and 285,183.71 is: 393,553.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,901.18 : 727,123.56 = 285,183.71 : x
  2. Step 2: Convert to fraction form
    526,901.18/727,123.56 = 285,183.71/x
  3. Step 3: Cross multiply
    526,901.18x = 727,123.56 × 285,183.71
  4. Step 4: Simplify right side
    526,901.18x = 207,363,790,833.59
  5. Step 5: Solve for x
    x = 207,363,790,833.59/526,901.18
  6. Step 6: Final answer
    x = 393,553.48

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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.