Home / 1,185,221.57-1,635,205.43-771,569.50

Finding the Fourth Proportional to 1,185,221.57, 1,635,205.43 and 771,569.50

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Solution

The fourth proportional to 1,185,221.57, 1,635,205.43 and 771,569.50 is: 1,064,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,221.57 : 1,635,205.43 = 771,569.50 : x
  2. Step 2: Convert to fraction form
    1,185,221.57/1,635,205.43 = 771,569.50/x
  3. Step 3: Cross multiply
    1,185,221.57x = 1,635,205.43 × 771,569.50
  4. Step 4: Simplify right side
    1,185,221.57x = 1,261,674,632,589.23
  5. Step 5: Solve for x
    x = 1,261,674,632,589.23/1,185,221.57
  6. Step 6: Final answer
    x = 1,064,505.30

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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.