Home / 865,207.14-1,297,960.17-385,605.33

Finding the Fourth Proportional to 865,207.14, 1,297,960.17 and 385,605.33

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Solution

The fourth proportional to 865,207.14, 1,297,960.17 and 385,605.33 is: 578,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,207.14 : 1,297,960.17 = 385,605.33 : x
  2. Step 2: Convert to fraction form
    865,207.14/1,297,960.17 = 385,605.33/x
  3. Step 3: Cross multiply
    865,207.14x = 1,297,960.17 × 385,605.33
  4. Step 4: Simplify right side
    865,207.14x = 500,500,359,679.71
  5. Step 5: Solve for x
    x = 500,500,359,679.71/865,207.14
  6. Step 6: Final answer
    x = 578,474.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.