Home / 1,205,163.72-1,663,117.62-668,619.72

Finding the Fourth Proportional to 1,205,163.72, 1,663,117.62 and 668,619.72

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Solution

The fourth proportional to 1,205,163.72, 1,663,117.62 and 668,619.72 is: 922,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,163.72 : 1,663,117.62 = 668,619.72 : x
  2. Step 2: Convert to fraction form
    1,205,163.72/1,663,117.62 = 668,619.72/x
  3. Step 3: Cross multiply
    1,205,163.72x = 1,663,117.62 × 668,619.72
  4. Step 4: Simplify right side
    1,205,163.72x = 1,111,993,237,411.47
  5. Step 5: Solve for x
    x = 1,111,993,237,411.47/1,205,163.72
  6. Step 6: Final answer
    x = 922,690.60

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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.