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Finding the Fourth Proportional to 1,335,363.88, 1,842,742.02 and 731,738.92

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Solution

The fourth proportional to 1,335,363.88, 1,842,742.02 and 731,738.92 is: 1,009,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,363.88 : 1,842,742.02 = 731,738.92 : x
  2. Step 2: Convert to fraction form
    1,335,363.88/1,842,742.02 = 731,738.92/x
  3. Step 3: Cross multiply
    1,335,363.88x = 1,842,742.02 × 731,738.92
  4. Step 4: Simplify right side
    1,335,363.88x = 1,348,406,055,553.42
  5. Step 5: Solve for x
    x = 1,348,406,055,553.42/1,335,363.88
  6. Step 6: Final answer
    x = 1,009,766.76

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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.