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Finding the Fourth Proportional to 527,560.16, 728,085.12 and 301,239.68

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Solution

The fourth proportional to 527,560.16, 728,085.12 and 301,239.68 is: 415,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,560.16 : 728,085.12 = 301,239.68 : x
  2. Step 2: Convert to fraction form
    527,560.16/728,085.12 = 301,239.68/x
  3. Step 3: Cross multiply
    527,560.16x = 728,085.12 × 301,239.68
  4. Step 4: Simplify right side
    527,560.16x = 219,328,128,561.56
  5. Step 5: Solve for x
    x = 219,328,128,561.56/527,560.16
  6. Step 6: Final answer
    x = 415,740.51

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1.5x scale

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.