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Finding the Fourth Proportional to 352,342.20, 528,545.70 and 99,622.20

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Solution

The fourth proportional to 352,342.20, 528,545.70 and 99,622.20 is: 149,442.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,342.20 : 528,545.70 = 99,622.20 : x
  2. Step 2: Convert to fraction form
    352,342.20/528,545.70 = 99,622.20/x
  3. Step 3: Cross multiply
    352,342.20x = 528,545.70 × 99,622.20
  4. Step 4: Simplify right side
    352,342.20x = 52,654,885,434.54
  5. Step 5: Solve for x
    x = 52,654,885,434.54/352,342.20
  6. Step 6: Final answer
    x = 149,442.46

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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.