Home / 1,769,416.78-2,654,126.80-439,720.78

Finding the Fourth Proportional to 1,769,416.78, 2,654,126.80 and 439,720.78

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Solution

The fourth proportional to 1,769,416.78, 2,654,126.80 and 439,720.78 is: 659,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,416.78 : 2,654,126.80 = 439,720.78 : x
  2. Step 2: Convert to fraction form
    1,769,416.78/2,654,126.80 = 439,720.78/x
  3. Step 3: Cross multiply
    1,769,416.78x = 2,654,126.80 × 439,720.78
  4. Step 4: Simplify right side
    1,769,416.78x = 1,167,074,706,714.90
  5. Step 5: Solve for x
    x = 1,167,074,706,714.90/1,769,416.78
  6. Step 6: Final answer
    x = 659,581.58

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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.