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Finding the Fourth Proportional to 323,435, 446,344.62 and 187,478.66

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Solution

The fourth proportional to 323,435, 446,344.62 and 187,478.66 is: 258,723.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,435 : 446,344.62 = 187,478.66 : x
  2. Step 2: Convert to fraction form
    323,435/446,344.62 = 187,478.66/x
  3. Step 3: Cross multiply
    323,435x = 446,344.62 × 187,478.66
  4. Step 4: Simplify right side
    323,435x = 83,680,091,255.81
  5. Step 5: Solve for x
    x = 83,680,091,255.81/323,435
  6. Step 6: Final answer
    x = 258,723.05

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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.