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Finding the Fourth Proportional to 928.55, 1,392.99 and 466.65

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Solution

The fourth proportional to 928.55, 1,392.99 and 466.65 is: 700.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    928.55 : 1,392.99 = 466.65 : x
  2. Step 2: Convert to fraction form
    928.55/1,392.99 = 466.65/x
  3. Step 3: Cross multiply
    928.55x = 1,392.99 × 466.65
  4. Step 4: Simplify right side
    928.55x = 650,038.78
  5. Step 5: Solve for x
    x = 650,038.78/928.55
  6. Step 6: Final answer
    x = 700.06

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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.