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Finding the Fourth Proportional to 1,567.80, 2,352.06 and 798.12

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Solution

The fourth proportional to 1,567.80, 2,352.06 and 798.12 is: 1,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.80 : 2,352.06 = 798.12 : x
  2. Step 2: Convert to fraction form
    1,567.80/2,352.06 = 798.12/x
  3. Step 3: Cross multiply
    1,567.80x = 2,352.06 × 798.12
  4. Step 4: Simplify right side
    1,567.80x = 1,877,226.13
  5. Step 5: Solve for x
    x = 1,877,226.13/1,567.80
  6. Step 6: Final answer
    x = 1,197.36

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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.