Home / 2,689,663.26-3,711,736.65-1,528,111.53

Finding the Fourth Proportional to 2,689,663.26, 3,711,736.65 and 1,528,111.53

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Solution

The fourth proportional to 2,689,663.26, 3,711,736.65 and 1,528,111.53 is: 2,108,794.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,663.26 : 3,711,736.65 = 1,528,111.53 : x
  2. Step 2: Convert to fraction form
    2,689,663.26/3,711,736.65 = 1,528,111.53/x
  3. Step 3: Cross multiply
    2,689,663.26x = 3,711,736.65 × 1,528,111.53
  4. Step 4: Simplify right side
    2,689,663.26x = 5,671,947,571,188.57
  5. Step 5: Solve for x
    x = 5,671,947,571,188.57/2,689,663.26
  6. Step 6: Final answer
    x = 2,108,794.68

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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.