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Finding the Fourth Proportional to 327,113.40, 490,686.30 and 169,649.40

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Solution

The fourth proportional to 327,113.40, 490,686.30 and 169,649.40 is: 254,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,113.40 : 490,686.30 = 169,649.40 : x
  2. Step 2: Convert to fraction form
    327,113.40/490,686.30 = 169,649.40/x
  3. Step 3: Cross multiply
    327,113.40x = 490,686.30 × 169,649.40
  4. Step 4: Simplify right side
    327,113.40x = 83,244,636,383.22
  5. Step 5: Solve for x
    x = 83,244,636,383.22/327,113.40
  6. Step 6: Final answer
    x = 254,482.50

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1.5x scale

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.