Home / 420,151.86-579,759.12-238,864.14

Finding the Fourth Proportional to 420,151.86, 579,759.12 and 238,864.14

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Solution

The fourth proportional to 420,151.86, 579,759.12 and 238,864.14 is: 329,603.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,151.86 : 579,759.12 = 238,864.14 : x
  2. Step 2: Convert to fraction form
    420,151.86/579,759.12 = 238,864.14/x
  3. Step 3: Cross multiply
    420,151.86x = 579,759.12 × 238,864.14
  4. Step 4: Simplify right side
    420,151.86x = 138,483,663,605.96
  5. Step 5: Solve for x
    x = 138,483,663,605.96/420,151.86
  6. Step 6: Final answer
    x = 329,603.83

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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.