Home / 1,191,199.65-1,643,850.11-647,325.15

Finding the Fourth Proportional to 1,191,199.65, 1,643,850.11 and 647,325.15

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Solution

The fourth proportional to 1,191,199.65, 1,643,850.11 and 647,325.15 is: 893,305.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,199.65 : 1,643,850.11 = 647,325.15 : x
  2. Step 2: Convert to fraction form
    1,191,199.65/1,643,850.11 = 647,325.15/x
  3. Step 3: Cross multiply
    1,191,199.65x = 1,643,850.11 × 647,325.15
  4. Step 4: Simplify right side
    1,191,199.65x = 1,064,105,515,796.64
  5. Step 5: Solve for x
    x = 1,064,105,515,796.64/1,191,199.65
  6. Step 6: Final answer
    x = 893,305.77

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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.