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Finding the Fourth Proportional to 344,381.20, 475,254.84 and 189,330.60

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Solution

The fourth proportional to 344,381.20, 475,254.84 and 189,330.60 is: 261,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,381.20 : 475,254.84 = 189,330.60 : x
  2. Step 2: Convert to fraction form
    344,381.20/475,254.84 = 189,330.60/x
  3. Step 3: Cross multiply
    344,381.20x = 475,254.84 × 189,330.60
  4. Step 4: Simplify right side
    344,381.20x = 89,980,281,633.83
  5. Step 5: Solve for x
    x = 89,980,281,633.83/344,381.20
  6. Step 6: Final answer
    x = 261,281.05

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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.