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Finding the Fourth Proportional to 1,748.70, 2,413.08 and 962.76

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Solution

The fourth proportional to 1,748.70, 2,413.08 and 962.76 is: 1,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.70 : 2,413.08 = 962.76 : x
  2. Step 2: Convert to fraction form
    1,748.70/2,413.08 = 962.76/x
  3. Step 3: Cross multiply
    1,748.70x = 2,413.08 × 962.76
  4. Step 4: Simplify right side
    1,748.70x = 2,323,216.90
  5. Step 5: Solve for x
    x = 2,323,216.90/1,748.70
  6. Step 6: Final answer
    x = 1,328.54

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Half 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.