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Finding the Fourth Proportional to 411,763.67, 568,153.11 and 258,713.20

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Solution

The fourth proportional to 411,763.67, 568,153.11 and 258,713.20 is: 356,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,763.67 : 568,153.11 = 258,713.20 : x
  2. Step 2: Convert to fraction form
    411,763.67/568,153.11 = 258,713.20/x
  3. Step 3: Cross multiply
    411,763.67x = 568,153.11 × 258,713.20
  4. Step 4: Simplify right side
    411,763.67x = 146,988,710,858.42
  5. Step 5: Solve for x
    x = 146,988,710,858.42/411,763.67
  6. Step 6: Final answer
    x = 356,973.48

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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.