Home / 387,279.27-534,487.01-234,401.58

Finding the Fourth Proportional to 387,279.27, 534,487.01 and 234,401.58

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Solution

The fourth proportional to 387,279.27, 534,487.01 and 234,401.58 is: 323,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,279.27 : 534,487.01 = 234,401.58 : x
  2. Step 2: Convert to fraction form
    387,279.27/534,487.01 = 234,401.58/x
  3. Step 3: Cross multiply
    387,279.27x = 534,487.01 × 234,401.58
  4. Step 4: Simplify right side
    387,279.27x = 125,284,598,461.47
  5. Step 5: Solve for x
    x = 125,284,598,461.47/387,279.27
  6. Step 6: Final answer
    x = 323,499.37

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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.