Home / 1,205,199.95-1,663,171.34-661,344.84

Finding the Fourth Proportional to 1,205,199.95, 1,663,171.34 and 661,344.84

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Solution

The fourth proportional to 1,205,199.95, 1,663,171.34 and 661,344.84 is: 912,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,199.95 : 1,663,171.34 = 661,344.84 : x
  2. Step 2: Convert to fraction form
    1,205,199.95/1,663,171.34 = 661,344.84/x
  3. Step 3: Cross multiply
    1,205,199.95x = 1,663,171.34 × 661,344.84
  4. Step 4: Simplify right side
    1,205,199.95x = 1,099,929,783,744.89
  5. Step 5: Solve for x
    x = 1,099,929,783,744.89/1,205,199.95
  6. Step 6: Final answer
    x = 912,653.36

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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.