Home / 393,534.19-590,301.28-217,162.20

Finding the Fourth Proportional to 393,534.19, 590,301.28 and 217,162.20

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Solution

The fourth proportional to 393,534.19, 590,301.28 and 217,162.20 is: 325,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,534.19 : 590,301.28 = 217,162.20 : x
  2. Step 2: Convert to fraction form
    393,534.19/590,301.28 = 217,162.20/x
  3. Step 3: Cross multiply
    393,534.19x = 590,301.28 × 217,162.20
  4. Step 4: Simplify right side
    393,534.19x = 128,191,127,112.70
  5. Step 5: Solve for x
    x = 128,191,127,112.70/393,534.19
  6. Step 6: Final answer
    x = 325,743.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.