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Finding the Fourth Proportional to 463,407.48, 639,471.38 and 259,423.97

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Solution

The fourth proportional to 463,407.48, 639,471.38 and 259,423.97 is: 357,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,407.48 : 639,471.38 = 259,423.97 : x
  2. Step 2: Convert to fraction form
    463,407.48/639,471.38 = 259,423.97/x
  3. Step 3: Cross multiply
    463,407.48x = 639,471.38 × 259,423.97
  4. Step 4: Simplify right side
    463,407.48x = 165,894,199,606.50
  5. Step 5: Solve for x
    x = 165,894,199,606.50/463,407.48
  6. Step 6: Final answer
    x = 357,987.75

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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.