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Finding the Fourth Proportional to 1,866,724.96, 2,575,314.12 and 1,384,476.88

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Solution

The fourth proportional to 1,866,724.96, 2,575,314.12 and 1,384,476.88 is: 1,910,009.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,724.96 : 2,575,314.12 = 1,384,476.88 : x
  2. Step 2: Convert to fraction form
    1,866,724.96/2,575,314.12 = 1,384,476.88/x
  3. Step 3: Cross multiply
    1,866,724.96x = 2,575,314.12 × 1,384,476.88
  4. Step 4: Simplify right side
    1,866,724.96x = 3,565,462,857,877.55
  5. Step 5: Solve for x
    x = 3,565,462,857,877.55/1,866,724.96
  6. Step 6: Final answer
    x = 1,910,009.74

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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.