Home / 1,186,662.34-1,637,601.90-642,798.13

Finding the Fourth Proportional to 1,186,662.34, 1,637,601.90 and 642,798.13

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Solution

The fourth proportional to 1,186,662.34, 1,637,601.90 and 642,798.13 is: 887,065.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,662.34 : 1,637,601.90 = 642,798.13 : x
  2. Step 2: Convert to fraction form
    1,186,662.34/1,637,601.90 = 642,798.13/x
  3. Step 3: Cross multiply
    1,186,662.34x = 1,637,601.90 × 642,798.13
  4. Step 4: Simplify right side
    1,186,662.34x = 1,052,647,439,004.45
  5. Step 5: Solve for x
    x = 1,052,647,439,004.45/1,186,662.34
  6. Step 6: Final answer
    x = 887,065.68

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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.