Home / 1,186,519.37-1,637,396.02-642,655.00

Finding the Fourth Proportional to 1,186,519.37, 1,637,396.02 and 642,655.00

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Solution

The fourth proportional to 1,186,519.37, 1,637,396.02 and 642,655.00 is: 886,863.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,519.37 : 1,637,396.02 = 642,655.00 : x
  2. Step 2: Convert to fraction form
    1,186,519.37/1,637,396.02 = 642,655.00/x
  3. Step 3: Cross multiply
    1,186,519.37x = 1,637,396.02 × 642,655.00
  4. Step 4: Simplify right side
    1,186,519.37x = 1,052,280,735,942.93
  5. Step 5: Solve for x
    x = 1,052,280,735,942.93/1,186,519.37
  6. Step 6: Final answer
    x = 886,863.51

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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.