Home / 783,900.11-1,175,967.01-278,418.62

Finding the Fourth Proportional to 783,900.11, 1,175,967.01 and 278,418.62

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Solution

The fourth proportional to 783,900.11, 1,175,967.01 and 278,418.62 is: 417,669.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,900.11 : 1,175,967.01 = 278,418.62 : x
  2. Step 2: Convert to fraction form
    783,900.11/1,175,967.01 = 278,418.62/x
  3. Step 3: Cross multiply
    783,900.11x = 1,175,967.01 × 278,418.62
  4. Step 4: Simplify right side
    783,900.11x = 327,411,111,393.68
  5. Step 5: Solve for x
    x = 327,411,111,393.68/783,900.11
  6. Step 6: Final answer
    x = 417,669.43

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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.