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Finding the Fourth Proportional to 458,423.90, 632,619.42 and 254,476.44

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Solution

The fourth proportional to 458,423.90, 632,619.42 and 254,476.44 is: 351,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,423.90 : 632,619.42 = 254,476.44 : x
  2. Step 2: Convert to fraction form
    458,423.90/632,619.42 = 254,476.44/x
  3. Step 3: Cross multiply
    458,423.90x = 632,619.42 × 254,476.44
  4. Step 4: Simplify right side
    458,423.90x = 160,986,737,876.47
  5. Step 5: Solve for x
    x = 160,986,737,876.47/458,423.90
  6. Step 6: Final answer
    x = 351,174.40

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1.5x scale

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.