Home / 1,211,193.76-1,671,431.95-659,932.45

Finding the Fourth Proportional to 1,211,193.76, 1,671,431.95 and 659,932.45

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Solution

The fourth proportional to 1,211,193.76, 1,671,431.95 and 659,932.45 is: 910,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,193.76 : 1,671,431.95 = 659,932.45 : x
  2. Step 2: Convert to fraction form
    1,211,193.76/1,671,431.95 = 659,932.45/x
  3. Step 3: Cross multiply
    1,211,193.76x = 1,671,431.95 × 659,932.45
  4. Step 4: Simplify right side
    1,211,193.76x = 1,103,032,181,771.78
  5. Step 5: Solve for x
    x = 1,103,032,181,771.78/1,211,193.76
  6. Step 6: Final answer
    x = 910,698.37

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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.