Home / 514,209.60-771,314.40-135,129.60

Finding the Fourth Proportional to 514,209.60, 771,314.40 and 135,129.60

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Solution

The fourth proportional to 514,209.60, 771,314.40 and 135,129.60 is: 202,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,209.60 : 771,314.40 = 135,129.60 : x
  2. Step 2: Convert to fraction form
    514,209.60/771,314.40 = 135,129.60/x
  3. Step 3: Cross multiply
    514,209.60x = 771,314.40 × 135,129.60
  4. Step 4: Simplify right side
    514,209.60x = 104,227,406,346.24
  5. Step 5: Solve for x
    x = 104,227,406,346.24/514,209.60
  6. Step 6: Final answer
    x = 202,694.40

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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.