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Finding the Fourth Proportional to 717,545.62, 990,218.01 and 411,635.35

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Solution

The fourth proportional to 717,545.62, 990,218.01 and 411,635.35 is: 568,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,545.62 : 990,218.01 = 411,635.35 : x
  2. Step 2: Convert to fraction form
    717,545.62/990,218.01 = 411,635.35/x
  3. Step 3: Cross multiply
    717,545.62x = 990,218.01 × 411,635.35
  4. Step 4: Simplify right side
    717,545.62x = 407,608,737,122.65
  5. Step 5: Solve for x
    x = 407,608,737,122.65/717,545.62
  6. Step 6: Final answer
    x = 568,059.68

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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.