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Finding the Fourth Proportional to 1,154.32, 1,592.96 and 706.12

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Solution

The fourth proportional to 1,154.32, 1,592.96 and 706.12 is: 974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.32 : 1,592.96 = 706.12 : x
  2. Step 2: Convert to fraction form
    1,154.32/1,592.96 = 706.12/x
  3. Step 3: Cross multiply
    1,154.32x = 1,592.96 × 706.12
  4. Step 4: Simplify right side
    1,154.32x = 1,124,813.90
  5. Step 5: Solve for x
    x = 1,124,813.90/1,154.32
  6. Step 6: Final answer
    x = 974.44

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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.