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Finding the Fourth Proportional to 1,836,710.10, 2,755,065.15 and 1,330,200.90

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Solution

The fourth proportional to 1,836,710.10, 2,755,065.15 and 1,330,200.90 is: 1,995,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836,710.10 : 2,755,065.15 = 1,330,200.90 : x
  2. Step 2: Convert to fraction form
    1,836,710.10/2,755,065.15 = 1,330,200.90/x
  3. Step 3: Cross multiply
    1,836,710.10x = 2,755,065.15 × 1,330,200.90
  4. Step 4: Simplify right side
    1,836,710.10x = 3,664,790,142,088.64
  5. Step 5: Solve for x
    x = 3,664,790,142,088.64/1,836,710.10
  6. Step 6: Final answer
    x = 1,995,301.35

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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.