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Finding the Fourth Proportional to 662,740.76, 914,608.14 and 376,287.52

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Solution

The fourth proportional to 662,740.76, 914,608.14 and 376,287.52 is: 519,291.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,740.76 : 914,608.14 = 376,287.52 : x
  2. Step 2: Convert to fraction form
    662,740.76/914,608.14 = 376,287.52/x
  3. Step 3: Cross multiply
    662,740.76x = 914,608.14 × 376,287.52
  4. Step 4: Simplify right side
    662,740.76x = 344,155,628,772.41
  5. Step 5: Solve for x
    x = 344,155,628,772.41/662,740.76
  6. Step 6: Final answer
    x = 519,291.48

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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.