Home / 865,205.14-1,297,957.17-385,603.33

Finding the Fourth Proportional to 865,205.14, 1,297,957.17 and 385,603.33

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Solution

The fourth proportional to 865,205.14, 1,297,957.17 and 385,603.33 is: 578,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,205.14 : 1,297,957.17 = 385,603.33 : x
  2. Step 2: Convert to fraction form
    865,205.14/1,297,957.17 = 385,603.33/x
  3. Step 3: Cross multiply
    865,205.14x = 1,297,957.17 × 385,603.33
  4. Step 4: Simplify right side
    865,205.14x = 500,496,606,949.38
  5. Step 5: Solve for x
    x = 500,496,606,949.38/865,205.14
  6. Step 6: Final answer
    x = 578,471.61

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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.