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Finding the Fourth Proportional to 1,840.99, 2,761.49 and 746.13

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Solution

The fourth proportional to 1,840.99, 2,761.49 and 746.13 is: 1,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.99 : 2,761.49 = 746.13 : x
  2. Step 2: Convert to fraction form
    1,840.99/2,761.49 = 746.13/x
  3. Step 3: Cross multiply
    1,840.99x = 2,761.49 × 746.13
  4. Step 4: Simplify right side
    1,840.99x = 2,060,430.53
  5. Step 5: Solve for x
    x = 2,060,430.53/1,840.99
  6. Step 6: Final answer
    x = 1,119.20

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,841.99, 2,762.99 and 747.13
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.