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Finding the Fourth Proportional to 576,098.80, 864,148.20 and 339,902.80

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Solution

The fourth proportional to 576,098.80, 864,148.20 and 339,902.80 is: 509,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,098.80 : 864,148.20 = 339,902.80 : x
  2. Step 2: Convert to fraction form
    576,098.80/864,148.20 = 339,902.80/x
  3. Step 3: Cross multiply
    576,098.80x = 864,148.20 × 339,902.80
  4. Step 4: Simplify right side
    576,098.80x = 293,726,392,794.96
  5. Step 5: Solve for x
    x = 293,726,392,794.96/576,098.80
  6. Step 6: Final answer
    x = 509,854.20

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.