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Finding the Fourth Proportional to 326,648.02, 450,780.78 and 183,422.20

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Solution

The fourth proportional to 326,648.02, 450,780.78 and 183,422.20 is: 253,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,648.02 : 450,780.78 = 183,422.20 : x
  2. Step 2: Convert to fraction form
    326,648.02/450,780.78 = 183,422.20/x
  3. Step 3: Cross multiply
    326,648.02x = 450,780.78 × 183,422.20
  4. Step 4: Simplify right side
    326,648.02x = 82,683,202,385.32
  5. Step 5: Solve for x
    x = 82,683,202,385.32/326,648.02
  6. Step 6: Final answer
    x = 253,126.29

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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.