Home / 578,519.16-868,338.47-279,210.47

Finding the Fourth Proportional to 578,519.16, 868,338.47 and 279,210.47

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Solution

The fourth proportional to 578,519.16, 868,338.47 and 279,210.47 is: 419,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,519.16 : 868,338.47 = 279,210.47 : x
  2. Step 2: Convert to fraction form
    578,519.16/868,338.47 = 279,210.47/x
  3. Step 3: Cross multiply
    578,519.16x = 868,338.47 × 279,210.47
  4. Step 4: Simplify right side
    578,519.16x = 242,449,186,590.04
  5. Step 5: Solve for x
    x = 242,449,186,590.04/578,519.16
  6. Step 6: Final answer
    x = 419,085.84

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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.