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Finding the Fourth Proportional to 1,363.48, 2,045.22 and 714.68

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Solution

The fourth proportional to 1,363.48, 2,045.22 and 714.68 is: 1,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.48 : 2,045.22 = 714.68 : x
  2. Step 2: Convert to fraction form
    1,363.48/2,045.22 = 714.68/x
  3. Step 3: Cross multiply
    1,363.48x = 2,045.22 × 714.68
  4. Step 4: Simplify right side
    1,363.48x = 1,461,677.83
  5. Step 5: Solve for x
    x = 1,461,677.83/1,363.48
  6. Step 6: Final answer
    x = 1,072.02

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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.