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Finding the Fourth Proportional to 508,811.60, 763,217.40 and 134,834.60

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Solution

The fourth proportional to 508,811.60, 763,217.40 and 134,834.60 is: 202,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,811.60 : 763,217.40 = 134,834.60 : x
  2. Step 2: Convert to fraction form
    508,811.60/763,217.40 = 134,834.60/x
  3. Step 3: Cross multiply
    508,811.60x = 763,217.40 × 134,834.60
  4. Step 4: Simplify right side
    508,811.60x = 102,908,112,842.04
  5. Step 5: Solve for x
    x = 102,908,112,842.04/508,811.60
  6. Step 6: Final answer
    x = 202,251.90

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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.