Home / 808,685.62-1,213,775.43-409,606.65

Finding the Fourth Proportional to 808,685.62, 1,213,775.43 and 409,606.65

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Solution

The fourth proportional to 808,685.62, 1,213,775.43 and 409,606.65 is: 614,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,685.62 : 1,213,775.43 = 409,606.65 : x
  2. Step 2: Convert to fraction form
    808,685.62/1,213,775.43 = 409,606.65/x
  3. Step 3: Cross multiply
    808,685.62x = 1,213,775.43 × 409,606.65
  4. Step 4: Simplify right side
    808,685.62x = 497,170,485,088.88
  5. Step 5: Solve for x
    x = 497,170,485,088.88/808,685.62
  6. Step 6: Final answer
    x = 614,788.33

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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.