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Finding the Fourth Proportional to 680,233.14, 938,730.26 and 374,344.74

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Solution

The fourth proportional to 680,233.14, 938,730.26 and 374,344.74 is: 516,600.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,233.14 : 938,730.26 = 374,344.74 : x
  2. Step 2: Convert to fraction form
    680,233.14/938,730.26 = 374,344.74/x
  3. Step 3: Cross multiply
    680,233.14x = 938,730.26 × 374,344.74
  4. Step 4: Simplify right side
    680,233.14x = 351,408,736,045.69
  5. Step 5: Solve for x
    x = 351,408,736,045.69/680,233.14
  6. Step 6: Final answer
    x = 516,600.44

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1.5x scale

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.