Home / 1,191,521.80-1,644,297.06-647,657.56

Finding the Fourth Proportional to 1,191,521.80, 1,644,297.06 and 647,657.56

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Solution

The fourth proportional to 1,191,521.80, 1,644,297.06 and 647,657.56 is: 893,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,521.80 : 1,644,297.06 = 647,657.56 : x
  2. Step 2: Convert to fraction form
    1,191,521.80/1,644,297.06 = 647,657.56/x
  3. Step 3: Cross multiply
    1,191,521.80x = 1,644,297.06 × 647,657.56
  4. Step 4: Simplify right side
    1,191,521.80x = 1,064,941,421,794.77
  5. Step 5: Solve for x
    x = 1,064,941,421,794.77/1,191,521.80
  6. Step 6: Final answer
    x = 893,765.79

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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.