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Finding the Fourth Proportional to 398,981.60, 598,472.40 and 177,365.60

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Solution

The fourth proportional to 398,981.60, 598,472.40 and 177,365.60 is: 266,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,981.60 : 598,472.40 = 177,365.60 : x
  2. Step 2: Convert to fraction form
    398,981.60/598,472.40 = 177,365.60/x
  3. Step 3: Cross multiply
    398,981.60x = 598,472.40 × 177,365.60
  4. Step 4: Simplify right side
    398,981.60x = 106,148,416,309.44
  5. Step 5: Solve for x
    x = 106,148,416,309.44/398,981.60
  6. Step 6: Final answer
    x = 266,048.40

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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.