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Finding the Fourth Proportional to 381,950.40, 572,925.60 and 340,616.10

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Solution

The fourth proportional to 381,950.40, 572,925.60 and 340,616.10 is: 510,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,950.40 : 572,925.60 = 340,616.10 : x
  2. Step 2: Convert to fraction form
    381,950.40/572,925.60 = 340,616.10/x
  3. Step 3: Cross multiply
    381,950.40x = 572,925.60 × 340,616.10
  4. Step 4: Simplify right side
    381,950.40x = 195,147,683,462.16
  5. Step 5: Solve for x
    x = 195,147,683,462.16/381,950.40
  6. Step 6: Final answer
    x = 510,924.15

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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.