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Finding the Fourth Proportional to 676,805.71, 933,991.89 and 370,894.13

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Solution

The fourth proportional to 676,805.71, 933,991.89 and 370,894.13 is: 511,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,805.71 : 933,991.89 = 370,894.13 : x
  2. Step 2: Convert to fraction form
    676,805.71/933,991.89 = 370,894.13/x
  3. Step 3: Cross multiply
    676,805.71x = 933,991.89 × 370,894.13
  4. Step 4: Simplify right side
    676,805.71x = 346,412,115,059.47
  5. Step 5: Solve for x
    x = 346,412,115,059.47/676,805.71
  6. Step 6: Final answer
    x = 511,833.91

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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.