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Finding the Fourth Proportional to 577,205.70, 865,808.55 and 203,180.10

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Solution

The fourth proportional to 577,205.70, 865,808.55 and 203,180.10 is: 304,770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,205.70 : 865,808.55 = 203,180.10 : x
  2. Step 2: Convert to fraction form
    577,205.70/865,808.55 = 203,180.10/x
  3. Step 3: Cross multiply
    577,205.70x = 865,808.55 × 203,180.10
  4. Step 4: Simplify right side
    577,205.70x = 175,915,067,769.86
  5. Step 5: Solve for x
    x = 175,915,067,769.86/577,205.70
  6. Step 6: Final answer
    x = 304,770.15

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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.