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Finding the Fourth Proportional to 550,256.55, 825,384.83 and 474,148.95

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Solution

The fourth proportional to 550,256.55, 825,384.83 and 474,148.95 is: 711,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,256.55 : 825,384.83 = 474,148.95 : x
  2. Step 2: Convert to fraction form
    550,256.55/825,384.83 = 474,148.95/x
  3. Step 3: Cross multiply
    550,256.55x = 825,384.83 × 474,148.95
  4. Step 4: Simplify right side
    550,256.55x = 391,355,348,119.68
  5. Step 5: Solve for x
    x = 391,355,348,119.68/550,256.55
  6. Step 6: Final answer
    x = 711,223.43

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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.