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Finding the Fourth Proportional to 458,321.25, 632,473.80 and 254,360.32

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Solution

The fourth proportional to 458,321.25, 632,473.80 and 254,360.32 is: 351,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,321.25 : 632,473.80 = 254,360.32 : x
  2. Step 2: Convert to fraction form
    458,321.25/632,473.80 = 254,360.32/x
  3. Step 3: Cross multiply
    458,321.25x = 632,473.80 × 254,360.32
  4. Step 4: Simplify right side
    458,321.25x = 160,876,238,159.62
  5. Step 5: Solve for x
    x = 160,876,238,159.62/458,321.25
  6. Step 6: Final answer
    x = 351,011.96

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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.