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Finding the Fourth Proportional to 1,624.55, 2,240.91 and 995.36

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Solution

The fourth proportional to 1,624.55, 2,240.91 and 995.36 is: 1,373.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.55 : 2,240.91 = 995.36 : x
  2. Step 2: Convert to fraction form
    1,624.55/2,240.91 = 995.36/x
  3. Step 3: Cross multiply
    1,624.55x = 2,240.91 × 995.36
  4. Step 4: Simplify right side
    1,624.55x = 2,230,500.97
  5. Step 5: Solve for x
    x = 2,230,500.97/1,624.55
  6. Step 6: Final answer
    x = 1,373.00

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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.