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Finding the Fourth Proportional to 220,548.70, 330,823.05 and 201,886.30

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Solution

The fourth proportional to 220,548.70, 330,823.05 and 201,886.30 is: 302,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,548.70 : 330,823.05 = 201,886.30 : x
  2. Step 2: Convert to fraction form
    220,548.70/330,823.05 = 201,886.30/x
  3. Step 3: Cross multiply
    220,548.70x = 330,823.05 × 201,886.30
  4. Step 4: Simplify right side
    220,548.70x = 66,788,641,519.22
  5. Step 5: Solve for x
    x = 66,788,641,519.22/220,548.70
  6. Step 6: Final answer
    x = 302,829.45

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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.