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Finding the Fourth Proportional to 577,419.70, 866,129.55 and 364,843.30

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Solution

The fourth proportional to 577,419.70, 866,129.55 and 364,843.30 is: 547,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,419.70 : 866,129.55 = 364,843.30 : x
  2. Step 2: Convert to fraction form
    577,419.70/866,129.55 = 364,843.30/x
  3. Step 3: Cross multiply
    577,419.70x = 866,129.55 × 364,843.30
  4. Step 4: Simplify right side
    577,419.70x = 316,001,563,249.52
  5. Step 5: Solve for x
    x = 316,001,563,249.52/577,419.70
  6. Step 6: Final answer
    x = 547,264.95

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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.