Home / 638,496.01-881,164.20-352,015.66

Finding the Fourth Proportional to 638,496.01, 881,164.20 and 352,015.66

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Solution

The fourth proportional to 638,496.01, 881,164.20 and 352,015.66 is: 485,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,496.01 : 881,164.20 = 352,015.66 : x
  2. Step 2: Convert to fraction form
    638,496.01/881,164.20 = 352,015.66/x
  3. Step 3: Cross multiply
    638,496.01x = 881,164.20 × 352,015.66
  4. Step 4: Simplify right side
    638,496.01x = 310,183,597,431.37
  5. Step 5: Solve for x
    x = 310,183,597,431.37/638,496.01
  6. Step 6: Final answer
    x = 485,803.50

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.