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Finding the Fourth Proportional to 578,146.60, 866,721.56 and 223,409.54

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Solution

The fourth proportional to 578,146.60, 866,721.56 and 223,409.54 is: 334,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,146.60 : 866,721.56 = 223,409.54 : x
  2. Step 2: Convert to fraction form
    578,146.60/866,721.56 = 223,409.54/x
  3. Step 3: Cross multiply
    578,146.60x = 866,721.56 × 223,409.54
  4. Step 4: Simplify right side
    578,146.60x = 193,633,865,027.68
  5. Step 5: Solve for x
    x = 193,633,865,027.68/578,146.60
  6. Step 6: Final answer
    x = 334,921.74

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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.