Home / 1,261,171.61-1,740,453.57-688,248.68

Finding the Fourth Proportional to 1,261,171.61, 1,740,453.57 and 688,248.68

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Solution

The fourth proportional to 1,261,171.61, 1,740,453.57 and 688,248.68 is: 949,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,171.61 : 1,740,453.57 = 688,248.68 : x
  2. Step 2: Convert to fraction form
    1,261,171.61/1,740,453.57 = 688,248.68/x
  3. Step 3: Cross multiply
    1,261,171.61x = 1,740,453.57 × 688,248.68
  4. Step 4: Simplify right side
    1,261,171.61x = 1,197,864,863,451.52
  5. Step 5: Solve for x
    x = 1,197,864,863,451.52/1,261,171.61
  6. Step 6: Final answer
    x = 949,803.23

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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.