Home / 1,191,521.87-1,644,311.86-647,657.32

Finding the Fourth Proportional to 1,191,521.87, 1,644,311.86 and 647,657.32

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Solution

The fourth proportional to 1,191,521.87, 1,644,311.86 and 647,657.32 is: 893,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,521.87 : 1,644,311.86 = 647,657.32 : x
  2. Step 2: Convert to fraction form
    1,191,521.87/1,644,311.86 = 647,657.32/x
  3. Step 3: Cross multiply
    1,191,521.87x = 1,644,311.86 × 647,657.32
  4. Step 4: Simplify right side
    1,191,521.87x = 1,064,950,606,761.89
  5. Step 5: Solve for x
    x = 1,064,950,606,761.89/1,191,521.87
  6. Step 6: Final answer
    x = 893,773.45

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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.