Home / 286,964.02-396,010.34-159,639.61

Finding the Fourth Proportional to 286,964.02, 396,010.34 and 159,639.61

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Solution

The fourth proportional to 286,964.02, 396,010.34 and 159,639.61 is: 220,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,964.02 : 396,010.34 = 159,639.61 : x
  2. Step 2: Convert to fraction form
    286,964.02/396,010.34 = 159,639.61/x
  3. Step 3: Cross multiply
    286,964.02x = 396,010.34 × 159,639.61
  4. Step 4: Simplify right side
    286,964.02x = 63,218,936,235.50
  5. Step 5: Solve for x
    x = 63,218,936,235.50/286,964.02
  6. Step 6: Final answer
    x = 220,302.66

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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.