Home / 519,816.20-779,837.70-295,284.20

Finding the Fourth Proportional to 519,816.20, 779,837.70 and 295,284.20

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Solution

The fourth proportional to 519,816.20, 779,837.70 and 295,284.20 is: 442,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,816.20 : 779,837.70 = 295,284.20 : x
  2. Step 2: Convert to fraction form
    519,816.20/779,837.70 = 295,284.20/x
  3. Step 3: Cross multiply
    519,816.20x = 779,837.70 × 295,284.20
  4. Step 4: Simplify right side
    519,816.20x = 230,273,751,374.34
  5. Step 5: Solve for x
    x = 230,273,751,374.34/519,816.20
  6. Step 6: Final answer
    x = 442,990.72

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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.