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Finding the Fourth Proportional to 1,432.60, 1,973.10 and 1,244.68

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Solution

The fourth proportional to 1,432.60, 1,973.10 and 1,244.68 is: 1,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.60 : 1,973.10 = 1,244.68 : x
  2. Step 2: Convert to fraction form
    1,432.60/1,973.10 = 1,244.68/x
  3. Step 3: Cross multiply
    1,432.60x = 1,973.10 × 1,244.68
  4. Step 4: Simplify right side
    1,432.60x = 2,455,878.11
  5. Step 5: Solve for x
    x = 2,455,878.11/1,432.60
  6. Step 6: Final answer
    x = 1,714.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.