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Finding the Fourth Proportional to 374,532.15, 561,854.17 and 137,856.84

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Solution

The fourth proportional to 374,532.15, 561,854.17 and 137,856.84 is: 206,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,532.15 : 561,854.17 = 137,856.84 : x
  2. Step 2: Convert to fraction form
    374,532.15/561,854.17 = 137,856.84/x
  3. Step 3: Cross multiply
    374,532.15x = 561,854.17 × 137,856.84
  4. Step 4: Simplify right side
    374,532.15x = 77,455,438,482.39
  5. Step 5: Solve for x
    x = 77,455,438,482.39/374,532.15
  6. Step 6: Final answer
    x = 206,805.84

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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.