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Finding the Fourth Proportional to 579,400.70, 869,101.05 and 529,634.30

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Solution

The fourth proportional to 579,400.70, 869,101.05 and 529,634.30 is: 794,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,400.70 : 869,101.05 = 529,634.30 : x
  2. Step 2: Convert to fraction form
    579,400.70/869,101.05 = 529,634.30/x
  3. Step 3: Cross multiply
    579,400.70x = 869,101.05 × 529,634.30
  4. Step 4: Simplify right side
    579,400.70x = 460,305,726,246.02
  5. Step 5: Solve for x
    x = 460,305,726,246.02/579,400.70
  6. Step 6: Final answer
    x = 794,451.45

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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.