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Finding the Fourth Proportional to 458,638.26, 632,899.62 and 254,702.13

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Solution

The fourth proportional to 458,638.26, 632,899.62 and 254,702.13 is: 351,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,638.26 : 632,899.62 = 254,702.13 : x
  2. Step 2: Convert to fraction form
    458,638.26/632,899.62 = 254,702.13/x
  3. Step 3: Cross multiply
    458,638.26x = 632,899.62 × 254,702.13
  4. Step 4: Simplify right side
    458,638.26x = 161,200,881,290.19
  5. Step 5: Solve for x
    x = 161,200,881,290.19/458,638.26
  6. Step 6: Final answer
    x = 351,477.18

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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.