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Finding the Fourth Proportional to 1,170,414.10, 1,755,621.15 and 1,152,699.40

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Solution

The fourth proportional to 1,170,414.10, 1,755,621.15 and 1,152,699.40 is: 1,729,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,414.10 : 1,755,621.15 = 1,152,699.40 : x
  2. Step 2: Convert to fraction form
    1,170,414.10/1,755,621.15 = 1,152,699.40/x
  3. Step 3: Cross multiply
    1,170,414.10x = 1,755,621.15 × 1,152,699.40
  4. Step 4: Simplify right side
    1,170,414.10x = 2,023,703,446,232.31
  5. Step 5: Solve for x
    x = 2,023,703,446,232.31/1,170,414.10
  6. Step 6: Final answer
    x = 1,729,049.10

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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.