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Finding the Fourth Proportional to 374,704.11, 517,060.47 and 211,351.62

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Solution

The fourth proportional to 374,704.11, 517,060.47 and 211,351.62 is: 291,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,704.11 : 517,060.47 = 211,351.62 : x
  2. Step 2: Convert to fraction form
    374,704.11/517,060.47 = 211,351.62/x
  3. Step 3: Cross multiply
    374,704.11x = 517,060.47 × 211,351.62
  4. Step 4: Simplify right side
    374,704.11x = 109,281,567,972.46
  5. Step 5: Solve for x
    x = 109,281,567,972.46/374,704.11
  6. Step 6: Final answer
    x = 291,647.64

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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.