Home / 387,263.11-534,425.21-217,497.24

Finding the Fourth Proportional to 387,263.11, 534,425.21 and 217,497.24

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Solution

The fourth proportional to 387,263.11, 534,425.21 and 217,497.24 is: 300,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,263.11 : 534,425.21 = 217,497.24 : x
  2. Step 2: Convert to fraction form
    387,263.11/534,425.21 = 217,497.24/x
  3. Step 3: Cross multiply
    387,263.11x = 534,425.21 × 217,497.24
  4. Step 4: Simplify right side
    387,263.11x = 116,236,008,161.42
  5. Step 5: Solve for x
    x = 116,236,008,161.42/387,263.11
  6. Step 6: Final answer
    x = 300,147.38

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Double scale
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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.