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Finding the Fourth Proportional to 573,022.80, 858,906.45 and 288,259.20

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Solution

The fourth proportional to 573,022.80, 858,906.45 and 288,259.20 is: 432,073.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,022.80 : 858,906.45 = 288,259.20 : x
  2. Step 2: Convert to fraction form
    573,022.80/858,906.45 = 288,259.20/x
  3. Step 3: Cross multiply
    573,022.80x = 858,906.45 × 288,259.20
  4. Step 4: Simplify right side
    573,022.80x = 247,587,686,151.84
  5. Step 5: Solve for x
    x = 247,587,686,151.84/573,022.80
  6. Step 6: Final answer
    x = 432,073.01

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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.