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Finding the Fourth Proportional to 374,105.80, 561,158.70 and 187,049.80

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Solution

The fourth proportional to 374,105.80, 561,158.70 and 187,049.80 is: 280,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,105.80 : 561,158.70 = 187,049.80 : x
  2. Step 2: Convert to fraction form
    374,105.80/561,158.70 = 187,049.80/x
  3. Step 3: Cross multiply
    374,105.80x = 561,158.70 × 187,049.80
  4. Step 4: Simplify right side
    374,105.80x = 104,964,622,603.26
  5. Step 5: Solve for x
    x = 104,964,622,603.26/374,105.80
  6. Step 6: Final answer
    x = 280,574.70

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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.