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Finding the Fourth Proportional to 633,545.49, 874,355.48 and 361,654.23

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Solution

The fourth proportional to 633,545.49, 874,355.48 and 361,654.23 is: 499,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,545.49 : 874,355.48 = 361,654.23 : x
  2. Step 2: Convert to fraction form
    633,545.49/874,355.48 = 361,654.23/x
  3. Step 3: Cross multiply
    633,545.49x = 874,355.48 × 361,654.23
  4. Step 4: Simplify right side
    633,545.49x = 316,214,357,865.68
  5. Step 5: Solve for x
    x = 316,214,357,865.68/633,545.49
  6. Step 6: Final answer
    x = 499,118.63

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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.