Home / 1,989,695.70-2,985,124.73-641,828.39

Finding the Fourth Proportional to 1,989,695.70, 2,985,124.73 and 641,828.39

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Solution

The fourth proportional to 1,989,695.70, 2,985,124.73 and 641,828.39 is: 962,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,695.70 : 2,985,124.73 = 641,828.39 : x
  2. Step 2: Convert to fraction form
    1,989,695.70/2,985,124.73 = 641,828.39/x
  3. Step 3: Cross multiply
    1,989,695.70x = 2,985,124.73 × 641,828.39
  4. Step 4: Simplify right side
    1,989,695.70x = 1,915,937,781,270.32
  5. Step 5: Solve for x
    x = 1,915,937,781,270.32/1,989,695.70
  6. Step 6: Final answer
    x = 962,930.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.