Home / 718,837.40-991,960.26-432,301.88

Finding the Fourth Proportional to 718,837.40, 991,960.26 and 432,301.88

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Solution

The fourth proportional to 718,837.40, 991,960.26 and 432,301.88 is: 596,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,837.40 : 991,960.26 = 432,301.88 : x
  2. Step 2: Convert to fraction form
    718,837.40/991,960.26 = 432,301.88/x
  3. Step 3: Cross multiply
    718,837.40x = 991,960.26 × 432,301.88
  4. Step 4: Simplify right side
    718,837.40x = 428,826,285,283.29
  5. Step 5: Solve for x
    x = 428,826,285,283.29/718,837.40
  6. Step 6: Final answer
    x = 596,555.33

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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.