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Finding the Fourth Proportional to 662,138.20, 993,207.30 and 241,715.80

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Solution

The fourth proportional to 662,138.20, 993,207.30 and 241,715.80 is: 362,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,138.20 : 993,207.30 = 241,715.80 : x
  2. Step 2: Convert to fraction form
    662,138.20/993,207.30 = 241,715.80/x
  3. Step 3: Cross multiply
    662,138.20x = 993,207.30 × 241,715.80
  4. Step 4: Simplify right side
    662,138.20x = 240,073,897,085.34
  5. Step 5: Solve for x
    x = 240,073,897,085.34/662,138.20
  6. Step 6: Final answer
    x = 362,573.70

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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.