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Finding the Fourth Proportional to 962.01, 1,323.54 and 856.17

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Solution

The fourth proportional to 962.01, 1,323.54 and 856.17 is: 1,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.01 : 1,323.54 = 856.17 : x
  2. Step 2: Convert to fraction form
    962.01/1,323.54 = 856.17/x
  3. Step 3: Cross multiply
    962.01x = 1,323.54 × 856.17
  4. Step 4: Simplify right side
    962.01x = 1,133,175.24
  5. Step 5: Solve for x
    x = 1,133,175.24/962.01
  6. Step 6: Final answer
    x = 1,177.92

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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.