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Finding the Fourth Proportional to 717,456.08, 990,052.02 and 445,518.15

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Solution

The fourth proportional to 717,456.08, 990,052.02 and 445,518.15 is: 614,791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,456.08 : 990,052.02 = 445,518.15 : x
  2. Step 2: Convert to fraction form
    717,456.08/990,052.02 = 445,518.15/x
  3. Step 3: Cross multiply
    717,456.08x = 990,052.02 × 445,518.15
  4. Step 4: Simplify right side
    717,456.08x = 441,086,144,354.16
  5. Step 5: Solve for x
    x = 441,086,144,354.16/717,456.08
  6. Step 6: Final answer
    x = 614,791.84

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Double scale
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Similar ratio
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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.