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Finding the Fourth Proportional to 351,897.44, 527,841.66 and 85,658.18

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Solution

The fourth proportional to 351,897.44, 527,841.66 and 85,658.18 is: 128,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,897.44 : 527,841.66 = 85,658.18 : x
  2. Step 2: Convert to fraction form
    351,897.44/527,841.66 = 85,658.18/x
  3. Step 3: Cross multiply
    351,897.44x = 527,841.66 × 85,658.18
  4. Step 4: Simplify right side
    351,897.44x = 45,213,955,923.78
  5. Step 5: Solve for x
    x = 45,213,955,923.78/351,897.44
  6. Step 6: Final answer
    x = 128,486.17

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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.