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Finding the Fourth Proportional to 573,302.60, 859,629.90 and 218,328.20

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Solution

The fourth proportional to 573,302.60, 859,629.90 and 218,328.20 is: 327,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,302.60 : 859,629.90 = 218,328.20 : x
  2. Step 2: Convert to fraction form
    573,302.60/859,629.90 = 218,328.20/x
  3. Step 3: Cross multiply
    573,302.60x = 859,629.90 × 218,328.20
  4. Step 4: Simplify right side
    573,302.60x = 187,681,448,733.18
  5. Step 5: Solve for x
    x = 187,681,448,733.18/573,302.60
  6. Step 6: Final answer
    x = 327,368.91

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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.