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Finding the Fourth Proportional to 458,031.76, 632,061.60 and 254,090.80

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Solution

The fourth proportional to 458,031.76, 632,061.60 and 254,090.80 is: 350,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,031.76 : 632,061.60 = 254,090.80 : x
  2. Step 2: Convert to fraction form
    458,031.76/632,061.60 = 254,090.80/x
  3. Step 3: Cross multiply
    458,031.76x = 632,061.60 × 254,090.80
  4. Step 4: Simplify right side
    458,031.76x = 160,601,037,593.28
  5. Step 5: Solve for x
    x = 160,601,037,593.28/458,031.76
  6. Step 6: Final answer
    x = 350,632.97

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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.