Home / 399,154.23-550,886.27-253,974.29

Finding the Fourth Proportional to 399,154.23, 550,886.27 and 253,974.29

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Solution

The fourth proportional to 399,154.23, 550,886.27 and 253,974.29 is: 350,518.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,154.23 : 550,886.27 = 253,974.29 : x
  2. Step 2: Convert to fraction form
    399,154.23/550,886.27 = 253,974.29/x
  3. Step 3: Cross multiply
    399,154.23x = 550,886.27 × 253,974.29
  4. Step 4: Simplify right side
    399,154.23x = 139,910,945,269.70
  5. Step 5: Solve for x
    x = 139,910,945,269.70/399,154.23
  6. Step 6: Final answer
    x = 350,518.51

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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.