Home / 287,934.75-397,325.05-185,964.66

Finding the Fourth Proportional to 287,934.75, 397,325.05 and 185,964.66

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Solution

The fourth proportional to 287,934.75, 397,325.05 and 185,964.66 is: 256,615.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,934.75 : 397,325.05 = 185,964.66 : x
  2. Step 2: Convert to fraction form
    287,934.75/397,325.05 = 185,964.66/x
  3. Step 3: Cross multiply
    287,934.75x = 397,325.05 × 185,964.66
  4. Step 4: Simplify right side
    287,934.75x = 73,888,417,367.82
  5. Step 5: Solve for x
    x = 73,888,417,367.82/287,934.75
  6. Step 6: Final answer
    x = 256,615.14

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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.