Home / 639,139.51-958,545.24-189,756.12

Finding the Fourth Proportional to 639,139.51, 958,545.24 and 189,756.12

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Solution

The fourth proportional to 639,139.51, 958,545.24 and 189,756.12 is: 284,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,139.51 : 958,545.24 = 189,756.12 : x
  2. Step 2: Convert to fraction form
    639,139.51/958,545.24 = 189,756.12/x
  3. Step 3: Cross multiply
    639,139.51x = 958,545.24 × 189,756.12
  4. Step 4: Simplify right side
    639,139.51x = 181,889,824,145.39
  5. Step 5: Solve for x
    x = 181,889,824,145.39/639,139.51
  6. Step 6: Final answer
    x = 284,585.48

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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.