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Finding the Fourth Proportional to 573,028.30, 858,914.70 and 288,264.70

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Solution

The fourth proportional to 573,028.30, 858,914.70 and 288,264.70 is: 432,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,028.30 : 858,914.70 = 288,264.70 : x
  2. Step 2: Convert to fraction form
    573,028.30/858,914.70 = 288,264.70/x
  3. Step 3: Cross multiply
    573,028.30x = 858,914.70 × 288,264.70
  4. Step 4: Simplify right side
    573,028.30x = 247,594,788,321.09
  5. Step 5: Solve for x
    x = 247,594,788,321.09/573,028.30
  6. Step 6: Final answer
    x = 432,081.26

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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.