Home / 386,363.39-533,381.76-300,129.17

Finding the Fourth Proportional to 386,363.39, 533,381.76 and 300,129.17

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Solution

The fourth proportional to 386,363.39, 533,381.76 and 300,129.17 is: 414,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,363.39 : 533,381.76 = 300,129.17 : x
  2. Step 2: Convert to fraction form
    386,363.39/533,381.76 = 300,129.17/x
  3. Step 3: Cross multiply
    386,363.39x = 533,381.76 × 300,129.17
  4. Step 4: Simplify right side
    386,363.39x = 160,083,422,255.03
  5. Step 5: Solve for x
    x = 160,083,422,255.03/386,363.39
  6. Step 6: Final answer
    x = 414,333.83

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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.