Home / 353,261.54-487,250.26-217,116.74

Finding the Fourth Proportional to 353,261.54, 487,250.26 and 217,116.74

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Solution

The fourth proportional to 353,261.54, 487,250.26 and 217,116.74 is: 299,467.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,261.54 : 487,250.26 = 217,116.74 : x
  2. Step 2: Convert to fraction form
    353,261.54/487,250.26 = 217,116.74/x
  3. Step 3: Cross multiply
    353,261.54x = 487,250.26 × 217,116.74
  4. Step 4: Simplify right side
    353,261.54x = 105,790,185,036.31
  5. Step 5: Solve for x
    x = 105,790,185,036.31/353,261.54
  6. Step 6: Final answer
    x = 299,467.04

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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.