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Finding the Fourth Proportional to 351,729.10, 485,553.53 and 235,642.46

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Solution

The fourth proportional to 351,729.10, 485,553.53 and 235,642.46 is: 325,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,729.10 : 485,553.53 = 235,642.46 : x
  2. Step 2: Convert to fraction form
    351,729.10/485,553.53 = 235,642.46/x
  3. Step 3: Cross multiply
    351,729.10x = 485,553.53 × 235,642.46
  4. Step 4: Simplify right side
    351,729.10x = 114,417,024,664.90
  5. Step 5: Solve for x
    x = 114,417,024,664.90/351,729.10
  6. Step 6: Final answer
    x = 325,298.72

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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.