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Finding the Fourth Proportional to 2,559.33, 3,839.00 and 915.98

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Solution

The fourth proportional to 2,559.33, 3,839.00 and 915.98 is: 1,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.33 : 3,839.00 = 915.98 : x
  2. Step 2: Convert to fraction form
    2,559.33/3,839.00 = 915.98/x
  3. Step 3: Cross multiply
    2,559.33x = 3,839.00 × 915.98
  4. Step 4: Simplify right side
    2,559.33x = 3,516,423.45
  5. Step 5: Solve for x
    x = 3,516,423.45/2,559.33
  6. Step 6: Final answer
    x = 1,373.96

Related Problems

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Half scale
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Double scale
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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.