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Finding the Fourth Proportional to 457,492.40, 631,331.88 and 250,758.80

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Solution

The fourth proportional to 457,492.40, 631,331.88 and 250,758.80 is: 346,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,492.40 : 631,331.88 = 250,758.80 : x
  2. Step 2: Convert to fraction form
    457,492.40/631,331.88 = 250,758.80/x
  3. Step 3: Cross multiply
    457,492.40x = 631,331.88 × 250,758.80
  4. Step 4: Simplify right side
    457,492.40x = 158,312,024,630.54
  5. Step 5: Solve for x
    x = 158,312,024,630.54/457,492.40
  6. Step 6: Final answer
    x = 346,042.96

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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.