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Finding the Fourth Proportional to 2,312.63, 3,468.98 and 773.63

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Solution

The fourth proportional to 2,312.63, 3,468.98 and 773.63 is: 1,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.63 : 3,468.98 = 773.63 : x
  2. Step 2: Convert to fraction form
    2,312.63/3,468.98 = 773.63/x
  3. Step 3: Cross multiply
    2,312.63x = 3,468.98 × 773.63
  4. Step 4: Simplify right side
    2,312.63x = 2,683,685.78
  5. Step 5: Solve for x
    x = 2,683,685.78/2,312.63
  6. Step 6: Final answer
    x = 1,160.45

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1.5x scale

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.