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Finding the Fourth Proportional to 394,545.72, 544,445.10 and 224,748.60

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Solution

The fourth proportional to 394,545.72, 544,445.10 and 224,748.60 is: 310,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,545.72 : 544,445.10 = 224,748.60 : x
  2. Step 2: Convert to fraction form
    394,545.72/544,445.10 = 224,748.60/x
  3. Step 3: Cross multiply
    394,545.72x = 544,445.10 × 224,748.60
  4. Step 4: Simplify right side
    394,545.72x = 122,363,274,001.86
  5. Step 5: Solve for x
    x = 122,363,274,001.86/394,545.72
  6. Step 6: Final answer
    x = 310,137.12

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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.