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Finding the Fourth Proportional to 418,030.59, 626,885.38 and 177,992.31

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Solution

The fourth proportional to 418,030.59, 626,885.38 and 177,992.31 is: 266,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,030.59 : 626,885.38 = 177,992.31 : x
  2. Step 2: Convert to fraction form
    418,030.59/626,885.38 = 177,992.31/x
  3. Step 3: Cross multiply
    418,030.59x = 626,885.38 × 177,992.31
  4. Step 4: Simplify right side
    418,030.59x = 111,580,776,891.43
  5. Step 5: Solve for x
    x = 111,580,776,891.43/418,030.59
  6. Step 6: Final answer
    x = 266,920.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.