Home / 809,148.92-1,115,994.34-518,788.24

Finding the Fourth Proportional to 809,148.92, 1,115,994.34 and 518,788.24

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Solution

The fourth proportional to 809,148.92, 1,115,994.34 and 518,788.24 is: 715,523.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,148.92 : 1,115,994.34 = 518,788.24 : x
  2. Step 2: Convert to fraction form
    809,148.92/1,115,994.34 = 518,788.24/x
  3. Step 3: Cross multiply
    809,148.92x = 1,115,994.34 × 518,788.24
  4. Step 4: Simplify right side
    809,148.92x = 578,964,739,498.56
  5. Step 5: Solve for x
    x = 578,964,739,498.56/809,148.92
  6. Step 6: Final answer
    x = 715,523.09

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Double scale
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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.