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Finding the Fourth Proportional to 323,487.12, 446,421.60 and 187,521.60

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Solution

The fourth proportional to 323,487.12, 446,421.60 and 187,521.60 is: 258,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,487.12 : 446,421.60 = 187,521.60 : x
  2. Step 2: Convert to fraction form
    323,487.12/446,421.60 = 187,521.60/x
  3. Step 3: Cross multiply
    323,487.12x = 446,421.60 × 187,521.60
  4. Step 4: Simplify right side
    323,487.12x = 83,713,692,706.56
  5. Step 5: Solve for x
    x = 83,713,692,706.56/323,487.12
  6. Step 6: Final answer
    x = 258,785.24

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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.