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Finding the Fourth Proportional to 351,566.13, 527,349.45 and 85,326.89

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Solution

The fourth proportional to 351,566.13, 527,349.45 and 85,326.89 is: 127,990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,566.13 : 527,349.45 = 85,326.89 : x
  2. Step 2: Convert to fraction form
    351,566.13/527,349.45 = 85,326.89/x
  3. Step 3: Cross multiply
    351,566.13x = 527,349.45 × 85,326.89
  4. Step 4: Simplify right side
    351,566.13x = 44,997,085,874.96
  5. Step 5: Solve for x
    x = 44,997,085,874.96/351,566.13
  6. Step 6: Final answer
    x = 127,990.39

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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.