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Finding the Fourth Proportional to 507,215.56, 760,874.13 and 187,451.48

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Solution

The fourth proportional to 507,215.56, 760,874.13 and 187,451.48 is: 281,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,215.56 : 760,874.13 = 187,451.48 : x
  2. Step 2: Convert to fraction form
    507,215.56/760,874.13 = 187,451.48/x
  3. Step 3: Cross multiply
    507,215.56x = 760,874.13 × 187,451.48
  4. Step 4: Simplify right side
    507,215.56x = 142,626,977,957.84
  5. Step 5: Solve for x
    x = 142,626,977,957.84/507,215.56
  6. Step 6: Final answer
    x = 281,195.99

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1.5x scale

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.