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Finding the Fourth Proportional to 326,611.50, 450,689.31 and 183,387.66

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Solution

The fourth proportional to 326,611.50, 450,689.31 and 183,387.66 is: 253,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,611.50 : 450,689.31 = 183,387.66 : x
  2. Step 2: Convert to fraction form
    326,611.50/450,689.31 = 183,387.66/x
  3. Step 3: Cross multiply
    326,611.50x = 450,689.31 × 183,387.66
  4. Step 4: Simplify right side
    326,611.50x = 82,650,857,947.91
  5. Step 5: Solve for x
    x = 82,650,857,947.91/326,611.50
  6. Step 6: Final answer
    x = 253,055.57

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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.