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Finding the Fourth Proportional to 954.90, 1,432.35 and 954.90

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Solution

The fourth proportional to 954.90, 1,432.35 and 954.90 is: 1,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.90 : 1,432.35 = 954.90 : x
  2. Step 2: Convert to fraction form
    954.90/1,432.35 = 954.90/x
  3. Step 3: Cross multiply
    954.90x = 1,432.35 × 954.90
  4. Step 4: Simplify right side
    954.90x = 1,367,751.02
  5. Step 5: Solve for x
    x = 1,367,751.02/954.90
  6. Step 6: Final answer
    x = 1,432.35

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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.