Home / 1,901,476.80-2,851,613.16-621,788.64

Finding the Fourth Proportional to 1,901,476.80, 2,851,613.16 and 621,788.64

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Solution

The fourth proportional to 1,901,476.80, 2,851,613.16 and 621,788.64 is: 932,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901,476.80 : 2,851,613.16 = 621,788.64 : x
  2. Step 2: Convert to fraction form
    1,901,476.80/2,851,613.16 = 621,788.64/x
  3. Step 3: Cross multiply
    1,901,476.80x = 2,851,613.16 × 621,788.64
  4. Step 4: Simplify right side
    1,901,476.80x = 1,773,100,668,562.50
  5. Step 5: Solve for x
    x = 1,773,100,668,562.50/1,901,476.80
  6. Step 6: Final answer
    x = 932,486.09

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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.