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Finding the Fourth Proportional to 503,609.40, 755,414.10 and 474,060.60

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Solution

The fourth proportional to 503,609.40, 755,414.10 and 474,060.60 is: 711,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,609.40 : 755,414.10 = 474,060.60 : x
  2. Step 2: Convert to fraction form
    503,609.40/755,414.10 = 474,060.60/x
  3. Step 3: Cross multiply
    503,609.40x = 755,414.10 × 474,060.60
  4. Step 4: Simplify right side
    503,609.40x = 358,112,061,494.46
  5. Step 5: Solve for x
    x = 358,112,061,494.46/503,609.40
  6. Step 6: Final answer
    x = 711,090.90

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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.