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Finding the Fourth Proportional to 483,322.40, 724,983.60 and 304,863.20

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Solution

The fourth proportional to 483,322.40, 724,983.60 and 304,863.20 is: 457,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,322.40 : 724,983.60 = 304,863.20 : x
  2. Step 2: Convert to fraction form
    483,322.40/724,983.60 = 304,863.20/x
  3. Step 3: Cross multiply
    483,322.40x = 724,983.60 × 304,863.20
  4. Step 4: Simplify right side
    483,322.40x = 221,020,820,243.52
  5. Step 5: Solve for x
    x = 221,020,820,243.52/483,322.40
  6. Step 6: Final answer
    x = 457,294.80

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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.