Home / 1,191,422.45-1,644,179.65-647,558.08

Finding the Fourth Proportional to 1,191,422.45, 1,644,179.65 and 647,558.08

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Solution

The fourth proportional to 1,191,422.45, 1,644,179.65 and 647,558.08 is: 893,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,422.45 : 1,644,179.65 = 647,558.08 : x
  2. Step 2: Convert to fraction form
    1,191,422.45/1,644,179.65 = 647,558.08/x
  3. Step 3: Cross multiply
    1,191,422.45x = 1,644,179.65 × 647,558.08
  4. Step 4: Simplify right side
    1,191,422.45x = 1,064,701,811,599.73
  5. Step 5: Solve for x
    x = 1,064,701,811,599.73/1,191,422.45
  6. Step 6: Final answer
    x = 893,639.20

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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.