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Finding the Fourth Proportional to 1,194.18, 1,648.25 and 697.06

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Solution

The fourth proportional to 1,194.18, 1,648.25 and 697.06 is: 962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.18 : 1,648.25 = 697.06 : x
  2. Step 2: Convert to fraction form
    1,194.18/1,648.25 = 697.06/x
  3. Step 3: Cross multiply
    1,194.18x = 1,648.25 × 697.06
  4. Step 4: Simplify right side
    1,194.18x = 1,148,929.15
  5. Step 5: Solve for x
    x = 1,148,929.15/1,194.18
  6. Step 6: Final answer
    x = 962.11

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Half scale
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Double scale
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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.