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Finding the Fourth Proportional to 610,979.40, 916,469.10 and 532,247.40

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Solution

The fourth proportional to 610,979.40, 916,469.10 and 532,247.40 is: 798,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,979.40 : 916,469.10 = 532,247.40 : x
  2. Step 2: Convert to fraction form
    610,979.40/916,469.10 = 532,247.40/x
  3. Step 3: Cross multiply
    610,979.40x = 916,469.10 × 532,247.40
  4. Step 4: Simplify right side
    610,979.40x = 487,788,295,655.34
  5. Step 5: Solve for x
    x = 487,788,295,655.34/610,979.40
  6. Step 6: Final answer
    x = 798,371.10

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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.