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Finding the Fourth Proportional to 583,459.20, 875,188.80 and 140,227.20

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Solution

The fourth proportional to 583,459.20, 875,188.80 and 140,227.20 is: 210,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,459.20 : 875,188.80 = 140,227.20 : x
  2. Step 2: Convert to fraction form
    583,459.20/875,188.80 = 140,227.20/x
  3. Step 3: Cross multiply
    583,459.20x = 875,188.80 × 140,227.20
  4. Step 4: Simplify right side
    583,459.20x = 122,725,274,895.36
  5. Step 5: Solve for x
    x = 122,725,274,895.36/583,459.20
  6. Step 6: Final answer
    x = 210,340.80

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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.