Home / 1,211,411.71-1,671,759.36-667,566.96

Finding the Fourth Proportional to 1,211,411.71, 1,671,759.36 and 667,566.96

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Solution

The fourth proportional to 1,211,411.71, 1,671,759.36 and 667,566.96 is: 921,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,411.71 : 1,671,759.36 = 667,566.96 : x
  2. Step 2: Convert to fraction form
    1,211,411.71/1,671,759.36 = 667,566.96/x
  3. Step 3: Cross multiply
    1,211,411.71x = 1,671,759.36 × 667,566.96
  4. Step 4: Simplify right side
    1,211,411.71x = 1,116,011,313,806.75
  5. Step 5: Solve for x
    x = 1,116,011,313,806.75/1,211,411.71
  6. Step 6: Final answer
    x = 921,248.58

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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.