Home / 578,664.27-798,118.38-506,919.78

Finding the Fourth Proportional to 578,664.27, 798,118.38 and 506,919.78

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Solution

The fourth proportional to 578,664.27, 798,118.38 and 506,919.78 is: 699,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,664.27 : 798,118.38 = 506,919.78 : x
  2. Step 2: Convert to fraction form
    578,664.27/798,118.38 = 506,919.78/x
  3. Step 3: Cross multiply
    578,664.27x = 798,118.38 × 506,919.78
  4. Step 4: Simplify right side
    578,664.27x = 404,581,993,603.56
  5. Step 5: Solve for x
    x = 404,581,993,603.56/578,664.27
  6. Step 6: Final answer
    x = 699,165.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.