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Finding the Fourth Proportional to 972.46, 1,341.42 and 848.44

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Solution

The fourth proportional to 972.46, 1,341.42 and 848.44 is: 1,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    972.46 : 1,341.42 = 848.44 : x
  2. Step 2: Convert to fraction form
    972.46/1,341.42 = 848.44/x
  3. Step 3: Cross multiply
    972.46x = 1,341.42 × 848.44
  4. Step 4: Simplify right side
    972.46x = 1,138,114.38
  5. Step 5: Solve for x
    x = 1,138,114.38/972.46
  6. Step 6: Final answer
    x = 1,170.35

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1.5x scale

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.