Home / 1,261,095.80-1,740,354.21-688,167.41

Finding the Fourth Proportional to 1,261,095.80, 1,740,354.21 and 688,167.41

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Solution

The fourth proportional to 1,261,095.80, 1,740,354.21 and 688,167.41 is: 949,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,095.80 : 1,740,354.21 = 688,167.41 : x
  2. Step 2: Convert to fraction form
    1,261,095.80/1,740,354.21 = 688,167.41/x
  3. Step 3: Cross multiply
    1,261,095.80x = 1,740,354.21 × 688,167.41
  4. Step 4: Simplify right side
    1,261,095.80x = 1,197,655,040,476.53
  5. Step 5: Solve for x
    x = 1,197,655,040,476.53/1,261,095.80
  6. Step 6: Final answer
    x = 949,693.94

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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.