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Finding the Fourth Proportional to 583,410.60, 875,115.90 and 140,178.60

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Solution

The fourth proportional to 583,410.60, 875,115.90 and 140,178.60 is: 210,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,410.60 : 875,115.90 = 140,178.60 : x
  2. Step 2: Convert to fraction form
    583,410.60/875,115.90 = 140,178.60/x
  3. Step 3: Cross multiply
    583,410.60x = 875,115.90 × 140,178.60
  4. Step 4: Simplify right side
    583,410.60x = 122,672,521,699.74
  5. Step 5: Solve for x
    x = 122,672,521,699.74/583,410.60
  6. Step 6: Final answer
    x = 210,267.90

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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.