Home / 401,080.39-553,438.32-239,876.62

Finding the Fourth Proportional to 401,080.39, 553,438.32 and 239,876.62

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Solution

The fourth proportional to 401,080.39, 553,438.32 and 239,876.62 is: 330,998.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,080.39 : 553,438.32 = 239,876.62 : x
  2. Step 2: Convert to fraction form
    401,080.39/553,438.32 = 239,876.62/x
  3. Step 3: Cross multiply
    401,080.39x = 553,438.32 × 239,876.62
  4. Step 4: Simplify right side
    401,080.39x = 132,756,913,580.08
  5. Step 5: Solve for x
    x = 132,756,913,580.08/401,080.39
  6. Step 6: Final answer
    x = 330,998.27

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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.