Home / 387,527.25-534,837.72-217,761.39

Finding the Fourth Proportional to 387,527.25, 534,837.72 and 217,761.39

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Solution

The fourth proportional to 387,527.25, 534,837.72 and 217,761.39 is: 300,538.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,527.25 : 534,837.72 = 217,761.39 : x
  2. Step 2: Convert to fraction form
    387,527.25/534,837.72 = 217,761.39/x
  3. Step 3: Cross multiply
    387,527.25x = 534,837.72 × 217,761.39
  4. Step 4: Simplify right side
    387,527.25x = 116,467,005,331.63
  5. Step 5: Solve for x
    x = 116,467,005,331.63/387,527.25
  6. Step 6: Final answer
    x = 300,538.88

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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.