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Finding the Fourth Proportional to 676,486.59, 933,500.12 and 374,674.11

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Solution

The fourth proportional to 676,486.59, 933,500.12 and 374,674.11 is: 517,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,486.59 : 933,500.12 = 374,674.11 : x
  2. Step 2: Convert to fraction form
    676,486.59/933,500.12 = 374,674.11/x
  3. Step 3: Cross multiply
    676,486.59x = 933,500.12 × 374,674.11
  4. Step 4: Simplify right side
    676,486.59x = 349,758,324,772.52
  5. Step 5: Solve for x
    x = 349,758,324,772.52/676,486.59
  6. Step 6: Final answer
    x = 517,021.82

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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.