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Finding the Fourth Proportional to 558,079.71, 770,530.34 and 374,593.48

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Solution

The fourth proportional to 558,079.71, 770,530.34 and 374,593.48 is: 517,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,079.71 : 770,530.34 = 374,593.48 : x
  2. Step 2: Convert to fraction form
    558,079.71/770,530.34 = 374,593.48/x
  3. Step 3: Cross multiply
    558,079.71x = 770,530.34 × 374,593.48
  4. Step 4: Simplify right side
    558,079.71x = 288,635,641,506.18
  5. Step 5: Solve for x
    x = 288,635,641,506.18/558,079.71
  6. Step 6: Final answer
    x = 517,194.29

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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.