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Finding the Fourth Proportional to 330,886.15, 456,606.21 and 187,659.52

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Solution

The fourth proportional to 330,886.15, 456,606.21 and 187,659.52 is: 258,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,886.15 : 456,606.21 = 187,659.52 : x
  2. Step 2: Convert to fraction form
    330,886.15/456,606.21 = 187,659.52/x
  3. Step 3: Cross multiply
    330,886.15x = 456,606.21 × 187,659.52
  4. Step 4: Simplify right side
    330,886.15x = 85,686,501,759.83
  5. Step 5: Solve for x
    x = 85,686,501,759.83/330,886.15
  6. Step 6: Final answer
    x = 258,960.68

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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.