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Finding the Fourth Proportional to 558,078.71, 770,528.96 and 374,592.48

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Solution

The fourth proportional to 558,078.71, 770,528.96 and 374,592.48 is: 517,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,078.71 : 770,528.96 = 374,592.48 : x
  2. Step 2: Convert to fraction form
    558,078.71/770,528.96 = 374,592.48/x
  3. Step 3: Cross multiply
    558,078.71x = 770,528.96 × 374,592.48
  4. Step 4: Simplify right side
    558,078.71x = 288,634,352,165.26
  5. Step 5: Solve for x
    x = 288,634,352,165.26/558,078.71
  6. Step 6: Final answer
    x = 517,192.91

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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.