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Finding the Fourth Proportional to 374,429.70, 561,644.55 and 187,805.70

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Solution

The fourth proportional to 374,429.70, 561,644.55 and 187,805.70 is: 281,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,429.70 : 561,644.55 = 187,805.70 : x
  2. Step 2: Convert to fraction form
    374,429.70/561,644.55 = 187,805.70/x
  3. Step 3: Cross multiply
    374,429.70x = 561,644.55 × 187,805.70
  4. Step 4: Simplify right side
    374,429.70x = 105,480,047,863.94
  5. Step 5: Solve for x
    x = 105,480,047,863.94/374,429.70
  6. Step 6: Final answer
    x = 281,708.55

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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.