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Finding the Fourth Proportional to 527,283.78, 791,060.49 and 153,306.78

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Solution

The fourth proportional to 527,283.78, 791,060.49 and 153,306.78 is: 229,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,283.78 : 791,060.49 = 153,306.78 : x
  2. Step 2: Convert to fraction form
    527,283.78/791,060.49 = 153,306.78/x
  3. Step 3: Cross multiply
    527,283.78x = 791,060.49 × 153,306.78
  4. Step 4: Simplify right side
    527,283.78x = 121,274,936,507.12
  5. Step 5: Solve for x
    x = 121,274,936,507.12/527,283.78
  6. Step 6: Final answer
    x = 229,999.37

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1.5x scale

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.