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Finding the Fourth Proportional to 458,388.88, 632,587.56 and 257,199.76

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Solution

The fourth proportional to 458,388.88, 632,587.56 and 257,199.76 is: 354,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,388.88 : 632,587.56 = 257,199.76 : x
  2. Step 2: Convert to fraction form
    458,388.88/632,587.56 = 257,199.76/x
  3. Step 3: Cross multiply
    458,388.88x = 632,587.56 × 257,199.76
  4. Step 4: Simplify right side
    458,388.88x = 162,701,368,610.99
  5. Step 5: Solve for x
    x = 162,701,368,610.99/458,388.88
  6. Step 6: Final answer
    x = 354,941.79

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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.