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Finding the Fourth Proportional to 2,732.04, 4,098.69 and 784.22

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Solution

The fourth proportional to 2,732.04, 4,098.69 and 784.22 is: 1,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,732.04 : 4,098.69 = 784.22 : x
  2. Step 2: Convert to fraction form
    2,732.04/4,098.69 = 784.22/x
  3. Step 3: Cross multiply
    2,732.04x = 4,098.69 × 784.22
  4. Step 4: Simplify right side
    2,732.04x = 3,214,254.18
  5. Step 5: Solve for x
    x = 3,214,254.18/2,732.04
  6. Step 6: Final answer
    x = 1,176.50

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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.