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Finding the Fourth Proportional to 1,866,138.61, 2,799,652.13 and 603,966.23

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Solution

The fourth proportional to 1,866,138.61, 2,799,652.13 and 603,966.23 is: 906,093.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,138.61 : 2,799,652.13 = 603,966.23 : x
  2. Step 2: Convert to fraction form
    1,866,138.61/2,799,652.13 = 603,966.23/x
  3. Step 3: Cross multiply
    1,866,138.61x = 2,799,652.13 × 603,966.23
  4. Step 4: Simplify right side
    1,866,138.61x = 1,690,895,339,247.74
  5. Step 5: Solve for x
    x = 1,690,895,339,247.74/1,866,138.61
  6. Step 6: Final answer
    x = 906,093.11

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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.