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Finding the Fourth Proportional to 1,877,620.64, 2,815,693.92 and 662,938.24

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Solution

The fourth proportional to 1,877,620.64, 2,815,693.92 and 662,938.24 is: 994,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,620.64 : 2,815,693.92 = 662,938.24 : x
  2. Step 2: Convert to fraction form
    1,877,620.64/2,815,693.92 = 662,938.24/x
  3. Step 3: Cross multiply
    1,877,620.64x = 2,815,693.92 × 662,938.24
  4. Step 4: Simplify right side
    1,877,620.64x = 1,866,631,171,703.50
  5. Step 5: Solve for x
    x = 1,866,631,171,703.50/1,877,620.64
  6. Step 6: Final answer
    x = 994,147.13

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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.