Home / 386,690.29-533,696.73-225,545.33

Finding the Fourth Proportional to 386,690.29, 533,696.73 and 225,545.33

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Solution

The fourth proportional to 386,690.29, 533,696.73 and 225,545.33 is: 311,289.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,690.29 : 533,696.73 = 225,545.33 : x
  2. Step 2: Convert to fraction form
    386,690.29/533,696.73 = 225,545.33/x
  3. Step 3: Cross multiply
    386,690.29x = 533,696.73 × 225,545.33
  4. Step 4: Simplify right side
    386,690.29x = 120,372,805,087.77
  5. Step 5: Solve for x
    x = 120,372,805,087.77/386,690.29
  6. Step 6: Final answer
    x = 311,289.96

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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.