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Finding the Fourth Proportional to 1,952,116.64, 2,691,491.60 and 1,493,799.20

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Solution

The fourth proportional to 1,952,116.64, 2,691,491.60 and 1,493,799.20 is: 2,059,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952,116.64 : 2,691,491.60 = 1,493,799.20 : x
  2. Step 2: Convert to fraction form
    1,952,116.64/2,691,491.60 = 1,493,799.20/x
  3. Step 3: Cross multiply
    1,952,116.64x = 2,691,491.60 × 1,493,799.20
  4. Step 4: Simplify right side
    1,952,116.64x = 4,020,547,998,886.72
  5. Step 5: Solve for x
    x = 4,020,547,998,886.72/1,952,116.64
  6. Step 6: Final answer
    x = 2,059,583.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.