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Finding the Fourth Proportional to 472,990.59, 652,742.28 and 269,036.28

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Solution

The fourth proportional to 472,990.59, 652,742.28 and 269,036.28 is: 371,278.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,990.59 : 652,742.28 = 269,036.28 : x
  2. Step 2: Convert to fraction form
    472,990.59/652,742.28 = 269,036.28/x
  3. Step 3: Cross multiply
    472,990.59x = 652,742.28 × 269,036.28
  4. Step 4: Simplify right side
    472,990.59x = 175,611,350,201.03
  5. Step 5: Solve for x
    x = 175,611,350,201.03/472,990.59
  6. Step 6: Final answer
    x = 371,278.74

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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.