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Finding the Fourth Proportional to 1,762,854.12, 2,643,808.86 and 765,345

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Solution

The fourth proportional to 1,762,854.12, 2,643,808.86 and 765,345 is: 1,147,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762,854.12 : 2,643,808.86 = 765,345 : x
  2. Step 2: Convert to fraction form
    1,762,854.12/2,643,808.86 = 765,345/x
  3. Step 3: Cross multiply
    1,762,854.12x = 2,643,808.86 × 765,345
  4. Step 4: Simplify right side
    1,762,854.12x = 2,023,425,891,956.70
  5. Step 5: Solve for x
    x = 2,023,425,891,956.70/1,762,854.12
  6. Step 6: Final answer
    x = 1,147,812.44

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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.