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Finding the Fourth Proportional to 676,391.14, 933,386.51 and 370,468.85

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Solution

The fourth proportional to 676,391.14, 933,386.51 and 370,468.85 is: 511,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,391.14 : 933,386.51 = 370,468.85 : x
  2. Step 2: Convert to fraction form
    676,391.14/933,386.51 = 370,468.85/x
  3. Step 3: Cross multiply
    676,391.14x = 933,386.51 × 370,468.85
  4. Step 4: Simplify right side
    676,391.14x = 345,790,625,112.87
  5. Step 5: Solve for x
    x = 345,790,625,112.87/676,391.14
  6. Step 6: Final answer
    x = 511,228.80

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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.