Home / 638,440.03-957,669.50-189,206.47

Finding the Fourth Proportional to 638,440.03, 957,669.50 and 189,206.47

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Solution

The fourth proportional to 638,440.03, 957,669.50 and 189,206.47 is: 283,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,440.03 : 957,669.50 = 189,206.47 : x
  2. Step 2: Convert to fraction form
    638,440.03/957,669.50 = 189,206.47/x
  3. Step 3: Cross multiply
    638,440.03x = 957,669.50 × 189,206.47
  4. Step 4: Simplify right side
    638,440.03x = 181,197,265,521.67
  5. Step 5: Solve for x
    x = 181,197,265,521.67/638,440.03
  6. Step 6: Final answer
    x = 283,812.51

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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.