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Finding the Fourth Proportional to 578,885.76, 868,043.52 and 275,195.52

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Solution

The fourth proportional to 578,885.76, 868,043.52 and 275,195.52 is: 412,657.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,885.76 : 868,043.52 = 275,195.52 : x
  2. Step 2: Convert to fraction form
    578,885.76/868,043.52 = 275,195.52/x
  3. Step 3: Cross multiply
    578,885.76x = 868,043.52 × 275,195.52
  4. Step 4: Simplify right side
    578,885.76x = 238,881,687,869.03
  5. Step 5: Solve for x
    x = 238,881,687,869.03/578,885.76
  6. Step 6: Final answer
    x = 412,657.74

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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.