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Finding the Fourth Proportional to 1,764.84, 2,435.44 and 1,008.76

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Solution

The fourth proportional to 1,764.84, 2,435.44 and 1,008.76 is: 1,392.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.84 : 2,435.44 = 1,008.76 : x
  2. Step 2: Convert to fraction form
    1,764.84/2,435.44 = 1,008.76/x
  3. Step 3: Cross multiply
    1,764.84x = 2,435.44 × 1,008.76
  4. Step 4: Simplify right side
    1,764.84x = 2,456,774.45
  5. Step 5: Solve for x
    x = 2,456,774.45/1,764.84
  6. Step 6: Final answer
    x = 1,392.07

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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.