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Finding the Fourth Proportional to 1,791,318.76, 2,472,009.06 and 986,497

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Solution

The fourth proportional to 1,791,318.76, 2,472,009.06 and 986,497 is: 1,361,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,318.76 : 2,472,009.06 = 986,497 : x
  2. Step 2: Convert to fraction form
    1,791,318.76/2,472,009.06 = 986,497/x
  3. Step 3: Cross multiply
    1,791,318.76x = 2,472,009.06 × 986,497
  4. Step 4: Simplify right side
    1,791,318.76x = 2,438,629,521,662.82
  5. Step 5: Solve for x
    x = 2,438,629,521,662.82/1,791,318.76
  6. Step 6: Final answer
    x = 1,361,359.90

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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.