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Finding the Fourth Proportional to 1,363, 2,043.54 and 714.18

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Solution

The fourth proportional to 1,363, 2,043.54 and 714.18 is: 1,070.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363 : 2,043.54 = 714.18 : x
  2. Step 2: Convert to fraction form
    1,363/2,043.54 = 714.18/x
  3. Step 3: Cross multiply
    1,363x = 2,043.54 × 714.18
  4. Step 4: Simplify right side
    1,363x = 1,459,455.40
  5. Step 5: Solve for x
    x = 1,459,455.40/1,363
  6. Step 6: Final answer
    x = 1,070.77

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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.