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Finding the Fourth Proportional to 476,786, 715,167.92 and 240,065.12

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Solution

The fourth proportional to 476,786, 715,167.92 and 240,065.12 is: 360,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,786 : 715,167.92 = 240,065.12 : x
  2. Step 2: Convert to fraction form
    476,786/715,167.92 = 240,065.12/x
  3. Step 3: Cross multiply
    476,786x = 715,167.92 × 240,065.12
  4. Step 4: Simplify right side
    476,786x = 171,686,872,534.95
  5. Step 5: Solve for x
    x = 171,686,872,534.95/476,786
  6. Step 6: Final answer
    x = 360,092.10

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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.