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Finding the Fourth Proportional to 583,419.60, 875,129.40 and 140,187.60

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Solution

The fourth proportional to 583,419.60, 875,129.40 and 140,187.60 is: 210,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,419.60 : 875,129.40 = 140,187.60 : x
  2. Step 2: Convert to fraction form
    583,419.60/875,129.40 = 140,187.60/x
  3. Step 3: Cross multiply
    583,419.60x = 875,129.40 × 140,187.60
  4. Step 4: Simplify right side
    583,419.60x = 122,682,290,275.44
  5. Step 5: Solve for x
    x = 122,682,290,275.44/583,419.60
  6. Step 6: Final answer
    x = 210,281.40

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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.