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Finding the Fourth Proportional to 573,839.80, 791,888.18 and 392,545.60

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Solution

The fourth proportional to 573,839.80, 791,888.18 and 392,545.60 is: 541,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,839.80 : 791,888.18 = 392,545.60 : x
  2. Step 2: Convert to fraction form
    573,839.80/791,888.18 = 392,545.60/x
  3. Step 3: Cross multiply
    573,839.80x = 791,888.18 × 392,545.60
  4. Step 4: Simplify right side
    573,839.80x = 310,852,220,751.01
  5. Step 5: Solve for x
    x = 310,852,220,751.01/573,839.80
  6. Step 6: Final answer
    x = 541,705.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.