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Finding the Fourth Proportional to 418,030.84, 626,885.76 and 177,992.56

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Solution

The fourth proportional to 418,030.84, 626,885.76 and 177,992.56 is: 266,920.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,030.84 : 626,885.76 = 177,992.56 : x
  2. Step 2: Convert to fraction form
    418,030.84/626,885.76 = 177,992.56/x
  3. Step 3: Cross multiply
    418,030.84x = 626,885.76 × 177,992.56
  4. Step 4: Simplify right side
    418,030.84x = 111,580,998,115.52
  5. Step 5: Solve for x
    x = 111,580,998,115.52/418,030.84
  6. Step 6: Final answer
    x = 266,920.50

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1.5x scale

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.