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Finding the Fourth Proportional to 646,892.10, 970,338.15 and 366,956.10

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Solution

The fourth proportional to 646,892.10, 970,338.15 and 366,956.10 is: 550,434.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,892.10 : 970,338.15 = 366,956.10 : x
  2. Step 2: Convert to fraction form
    646,892.10/970,338.15 = 366,956.10/x
  3. Step 3: Cross multiply
    646,892.10x = 970,338.15 × 366,956.10
  4. Step 4: Simplify right side
    646,892.10x = 356,071,503,205.22
  5. Step 5: Solve for x
    x = 356,071,503,205.22/646,892.10
  6. Step 6: Final answer
    x = 550,434.15

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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.