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Finding the Fourth Proportional to 373,587.67, 515,684.10 and 220,626.49

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Solution

The fourth proportional to 373,587.67, 515,684.10 and 220,626.49 is: 304,543.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,587.67 : 515,684.10 = 220,626.49 : x
  2. Step 2: Convert to fraction form
    373,587.67/515,684.10 = 220,626.49/x
  3. Step 3: Cross multiply
    373,587.67x = 515,684.10 × 220,626.49
  4. Step 4: Simplify right side
    373,587.67x = 113,773,572,931.81
  5. Step 5: Solve for x
    x = 113,773,572,931.81/373,587.67
  6. Step 6: Final answer
    x = 304,543.17

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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.