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Finding the Fourth Proportional to 351,353.12, 484,867.59 and 190,209.56

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Solution

The fourth proportional to 351,353.12, 484,867.59 and 190,209.56 is: 262,489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,353.12 : 484,867.59 = 190,209.56 : x
  2. Step 2: Convert to fraction form
    351,353.12/484,867.59 = 190,209.56/x
  3. Step 3: Cross multiply
    351,353.12x = 484,867.59 × 190,209.56
  4. Step 4: Simplify right side
    351,353.12x = 92,226,450,952.16
  5. Step 5: Solve for x
    x = 92,226,450,952.16/351,353.12
  6. Step 6: Final answer
    x = 262,489.35

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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.