Home / 400,975.56-553,346.25-219,694.36

Finding the Fourth Proportional to 400,975.56, 553,346.25 and 219,694.36

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Solution

The fourth proportional to 400,975.56, 553,346.25 and 219,694.36 is: 303,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,975.56 : 553,346.25 = 219,694.36 : x
  2. Step 2: Convert to fraction form
    400,975.56/553,346.25 = 219,694.36/x
  3. Step 3: Cross multiply
    400,975.56x = 553,346.25 × 219,694.36
  4. Step 4: Simplify right side
    400,975.56x = 121,567,050,252.15
  5. Step 5: Solve for x
    x = 121,567,050,252.15/400,975.56
  6. Step 6: Final answer
    x = 303,178.20

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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.