Home / 639,016.76-958,724.01-189,739.98

Finding the Fourth Proportional to 639,016.76, 958,724.01 and 189,739.98

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Solution

The fourth proportional to 639,016.76, 958,724.01 and 189,739.98 is: 284,669.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,016.76 : 958,724.01 = 189,739.98 : x
  2. Step 2: Convert to fraction form
    639,016.76/958,724.01 = 189,739.98/x
  3. Step 3: Cross multiply
    639,016.76x = 958,724.01 × 189,739.98
  4. Step 4: Simplify right side
    639,016.76x = 181,908,274,482.92
  5. Step 5: Solve for x
    x = 181,908,274,482.92/639,016.76
  6. Step 6: Final answer
    x = 284,669.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.