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Finding the Fourth Proportional to 662,696.88, 914,232.84 and 417,532.76

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Solution

The fourth proportional to 662,696.88, 914,232.84 and 417,532.76 is: 576,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,696.88 : 914,232.84 = 417,532.76 : x
  2. Step 2: Convert to fraction form
    662,696.88/914,232.84 = 417,532.76/x
  3. Step 3: Cross multiply
    662,696.88x = 914,232.84 × 417,532.76
  4. Step 4: Simplify right side
    662,696.88x = 381,722,160,967.84
  5. Step 5: Solve for x
    x = 381,722,160,967.84/662,696.88
  6. Step 6: Final answer
    x = 576,013.22

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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.