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Finding the Fourth Proportional to 1,712.68, 2,567.94 and 616.84

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Solution

The fourth proportional to 1,712.68, 2,567.94 and 616.84 is: 924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.68 : 2,567.94 = 616.84 : x
  2. Step 2: Convert to fraction form
    1,712.68/2,567.94 = 616.84/x
  3. Step 3: Cross multiply
    1,712.68x = 2,567.94 × 616.84
  4. Step 4: Simplify right side
    1,712.68x = 1,584,008.11
  5. Step 5: Solve for x
    x = 1,584,008.11/1,712.68
  6. Step 6: Final answer
    x = 924.87

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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.