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Finding the Fourth Proportional to 527,279.28, 791,053.74 and 153,302.28

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Solution

The fourth proportional to 527,279.28, 791,053.74 and 153,302.28 is: 229,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,279.28 : 791,053.74 = 153,302.28 : x
  2. Step 2: Convert to fraction form
    527,279.28/791,053.74 = 153,302.28/x
  3. Step 3: Cross multiply
    527,279.28x = 791,053.74 × 153,302.28
  4. Step 4: Simplify right side
    527,279.28x = 121,270,341,944.53
  5. Step 5: Solve for x
    x = 121,270,341,944.53/527,279.28
  6. Step 6: Final answer
    x = 229,992.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.