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Finding the Fourth Proportional to 374,458.75, 516,626.88 and 213,199.72

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Solution

The fourth proportional to 374,458.75, 516,626.88 and 213,199.72 is: 294,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,458.75 : 516,626.88 = 213,199.72 : x
  2. Step 2: Convert to fraction form
    374,458.75/516,626.88 = 213,199.72/x
  3. Step 3: Cross multiply
    374,458.75x = 516,626.88 × 213,199.72
  4. Step 4: Simplify right side
    374,458.75x = 110,144,704,069.41
  5. Step 5: Solve for x
    x = 110,144,704,069.41/374,458.75
  6. Step 6: Final answer
    x = 294,143.76

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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.