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Finding the Fourth Proportional to 3,595.66, 5,393.86 and 998.60

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Solution

The fourth proportional to 3,595.66, 5,393.86 and 998.60 is: 1,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.66 : 5,393.86 = 998.60 : x
  2. Step 2: Convert to fraction form
    3,595.66/5,393.86 = 998.60/x
  3. Step 3: Cross multiply
    3,595.66x = 5,393.86 × 998.60
  4. Step 4: Simplify right side
    3,595.66x = 5,386,279.13
  5. Step 5: Solve for x
    x = 5,386,279.13/3,595.66
  6. Step 6: Final answer
    x = 1,498.00

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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.