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Finding the Fourth Proportional to 676,276.50, 933,290.73 and 374,470.50

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Solution

The fourth proportional to 676,276.50, 933,290.73 and 374,470.50 is: 516,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,276.50 : 933,290.73 = 374,470.50 : x
  2. Step 2: Convert to fraction form
    676,276.50/933,290.73 = 374,470.50/x
  3. Step 3: Cross multiply
    676,276.50x = 933,290.73 × 374,470.50
  4. Step 4: Simplify right side
    676,276.50x = 349,489,846,308.47
  5. Step 5: Solve for x
    x = 349,489,846,308.47/676,276.50
  6. Step 6: Final answer
    x = 516,785.44

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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.