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Finding the Fourth Proportional to 399,246.80, 598,870.20 and 264,527.60

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Solution

The fourth proportional to 399,246.80, 598,870.20 and 264,527.60 is: 396,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,246.80 : 598,870.20 = 264,527.60 : x
  2. Step 2: Convert to fraction form
    399,246.80/598,870.20 = 264,527.60/x
  3. Step 3: Cross multiply
    399,246.80x = 598,870.20 × 264,527.60
  4. Step 4: Simplify right side
    399,246.80x = 158,417,696,717.52
  5. Step 5: Solve for x
    x = 158,417,696,717.52/399,246.80
  6. Step 6: Final answer
    x = 396,791.40

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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.