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Finding the Fourth Proportional to 662,651.20, 914,463.03 and 376,176.07

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Solution

The fourth proportional to 662,651.20, 914,463.03 and 376,176.07 is: 519,125.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,651.20 : 914,463.03 = 376,176.07 : x
  2. Step 2: Convert to fraction form
    662,651.20/914,463.03 = 376,176.07/x
  3. Step 3: Cross multiply
    662,651.20x = 914,463.03 × 376,176.07
  4. Step 4: Simplify right side
    662,651.20x = 343,999,108,785.69
  5. Step 5: Solve for x
    x = 343,999,108,785.69/662,651.20
  6. Step 6: Final answer
    x = 519,125.46

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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.