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Finding the Fourth Proportional to 676,642.16, 933,690.84 and 374,760.56

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Solution

The fourth proportional to 676,642.16, 933,690.84 and 374,760.56 is: 517,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,642.16 : 933,690.84 = 374,760.56 : x
  2. Step 2: Convert to fraction form
    676,642.16/933,690.84 = 374,760.56/x
  3. Step 3: Cross multiply
    676,642.16x = 933,690.84 × 374,760.56
  4. Step 4: Simplify right side
    676,642.16x = 349,910,502,065.27
  5. Step 5: Solve for x
    x = 349,910,502,065.27/676,642.16
  6. Step 6: Final answer
    x = 517,127.85

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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.