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Finding the Fourth Proportional to 970.44, 1,454.91 and 483.11

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Solution

The fourth proportional to 970.44, 1,454.91 and 483.11 is: 724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    970.44 : 1,454.91 = 483.11 : x
  2. Step 2: Convert to fraction form
    970.44/1,454.91 = 483.11/x
  3. Step 3: Cross multiply
    970.44x = 1,454.91 × 483.11
  4. Step 4: Simplify right side
    970.44x = 702,881.57
  5. Step 5: Solve for x
    x = 702,881.57/970.44
  6. Step 6: Final answer
    x = 724.29

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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.