Home / 527,436.57-727,864.70-285,719.14

Finding the Fourth Proportional to 527,436.57, 727,864.70 and 285,719.14

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Solution

The fourth proportional to 527,436.57, 727,864.70 and 285,719.14 is: 394,293.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,436.57 : 727,864.70 = 285,719.14 : x
  2. Step 2: Convert to fraction form
    527,436.57/727,864.70 = 285,719.14/x
  3. Step 3: Cross multiply
    527,436.57x = 727,864.70 × 285,719.14
  4. Step 4: Simplify right side
    527,436.57x = 207,964,876,120.36
  5. Step 5: Solve for x
    x = 207,964,876,120.36/527,436.57
  6. Step 6: Final answer
    x = 394,293.62

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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.