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Finding the Fourth Proportional to 529,905.20, 794,857.80 and 471,844.40

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Solution

The fourth proportional to 529,905.20, 794,857.80 and 471,844.40 is: 707,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,905.20 : 794,857.80 = 471,844.40 : x
  2. Step 2: Convert to fraction form
    529,905.20/794,857.80 = 471,844.40/x
  3. Step 3: Cross multiply
    529,905.20x = 794,857.80 × 471,844.40
  4. Step 4: Simplify right side
    529,905.20x = 375,049,201,726.32
  5. Step 5: Solve for x
    x = 375,049,201,726.32/529,905.20
  6. Step 6: Final answer
    x = 707,766.60

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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.