Home / 1,221,006.56-1,684,989.06-677,225.62

Finding the Fourth Proportional to 1,221,006.56, 1,684,989.06 and 677,225.62

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Solution

The fourth proportional to 1,221,006.56, 1,684,989.06 and 677,225.62 is: 934,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,006.56 : 1,684,989.06 = 677,225.62 : x
  2. Step 2: Convert to fraction form
    1,221,006.56/1,684,989.06 = 677,225.62/x
  3. Step 3: Cross multiply
    1,221,006.56x = 1,684,989.06 × 677,225.62
  4. Step 4: Simplify right side
    1,221,006.56x = 1,141,117,756,639.24
  5. Step 5: Solve for x
    x = 1,141,117,756,639.24/1,221,006.56
  6. Step 6: Final answer
    x = 934,571.35

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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.