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Finding the Fourth Proportional to 483,218.80, 724,824.60 and 146,258.80

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Solution

The fourth proportional to 483,218.80, 724,824.60 and 146,258.80 is: 219,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,218.80 : 724,824.60 = 146,258.80 : x
  2. Step 2: Convert to fraction form
    483,218.80/724,824.60 = 146,258.80/x
  3. Step 3: Cross multiply
    483,218.80x = 724,824.60 × 146,258.80
  4. Step 4: Simplify right side
    483,218.80x = 106,011,976,206.48
  5. Step 5: Solve for x
    x = 106,011,976,206.48/483,218.80
  6. Step 6: Final answer
    x = 219,387.11

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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.