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Finding the Fourth Proportional to 292,077.90, 438,116.85 and 274,363.20

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Solution

The fourth proportional to 292,077.90, 438,116.85 and 274,363.20 is: 411,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,077.90 : 438,116.85 = 274,363.20 : x
  2. Step 2: Convert to fraction form
    292,077.90/438,116.85 = 274,363.20/x
  3. Step 3: Cross multiply
    292,077.90x = 438,116.85 × 274,363.20
  4. Step 4: Simplify right side
    292,077.90x = 120,203,140,939.92
  5. Step 5: Solve for x
    x = 120,203,140,939.92/292,077.90
  6. Step 6: Final answer
    x = 411,544.80

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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.