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Finding the Fourth Proportional to 292,466.40, 438,764.40 and 229,480.80

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Solution

The fourth proportional to 292,466.40, 438,764.40 and 229,480.80 is: 344,272.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,466.40 : 438,764.40 = 229,480.80 : x
  2. Step 2: Convert to fraction form
    292,466.40/438,764.40 = 229,480.80/x
  3. Step 3: Cross multiply
    292,466.40x = 438,764.40 × 229,480.80
  4. Step 4: Simplify right side
    292,466.40x = 100,688,005,523.52
  5. Step 5: Solve for x
    x = 100,688,005,523.52/292,466.40
  6. Step 6: Final answer
    x = 344,272.04

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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.