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Finding the Fourth Proportional to 503,010.60, 754,515.90 and 129,033.60

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Solution

The fourth proportional to 503,010.60, 754,515.90 and 129,033.60 is: 193,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,010.60 : 754,515.90 = 129,033.60 : x
  2. Step 2: Convert to fraction form
    503,010.60/754,515.90 = 129,033.60/x
  3. Step 3: Cross multiply
    503,010.60x = 754,515.90 × 129,033.60
  4. Step 4: Simplify right side
    503,010.60x = 97,357,902,834.24
  5. Step 5: Solve for x
    x = 97,357,902,834.24/503,010.60
  6. Step 6: Final answer
    x = 193,550.40

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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.