Home / 527,085.20-727,368.78-285,365.82

Finding the Fourth Proportional to 527,085.20, 727,368.78 and 285,365.82

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Solution

The fourth proportional to 527,085.20, 727,368.78 and 285,365.82 is: 393,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,085.20 : 727,368.78 = 285,365.82 : x
  2. Step 2: Convert to fraction form
    527,085.20/727,368.78 = 285,365.82/x
  3. Step 3: Cross multiply
    527,085.20x = 727,368.78 × 285,365.82
  4. Step 4: Simplify right side
    527,085.20x = 207,566,188,347.10
  5. Step 5: Solve for x
    x = 207,566,188,347.10/527,085.20
  6. Step 6: Final answer
    x = 393,800.07

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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.