Home / 1,769,417.78-2,654,128.30-439,721.78

Finding the Fourth Proportional to 1,769,417.78, 2,654,128.30 and 439,721.78

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Solution

The fourth proportional to 1,769,417.78, 2,654,128.30 and 439,721.78 is: 659,583.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,417.78 : 2,654,128.30 = 439,721.78 : x
  2. Step 2: Convert to fraction form
    1,769,417.78/2,654,128.30 = 439,721.78/x
  3. Step 3: Cross multiply
    1,769,417.78x = 2,654,128.30 × 439,721.78
  4. Step 4: Simplify right side
    1,769,417.78x = 1,167,078,020,424.37
  5. Step 5: Solve for x
    x = 1,167,078,020,424.37/1,769,417.78
  6. Step 6: Final answer
    x = 659,583.08

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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.