Home / 527,186.90-727,516.80-285,470.15

Finding the Fourth Proportional to 527,186.90, 727,516.80 and 285,470.15

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Solution

The fourth proportional to 527,186.90, 727,516.80 and 285,470.15 is: 393,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,186.90 : 727,516.80 = 285,470.15 : x
  2. Step 2: Convert to fraction form
    527,186.90/727,516.80 = 285,470.15/x
  3. Step 3: Cross multiply
    527,186.90x = 727,516.80 × 285,470.15
  4. Step 4: Simplify right side
    527,186.90x = 207,684,326,385.94
  5. Step 5: Solve for x
    x = 207,684,326,385.94/527,186.90
  6. Step 6: Final answer
    x = 393,948.20

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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.