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Finding the Fourth Proportional to 1,915,643, 2,873,478.90 and 850,398.68

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Solution

The fourth proportional to 1,915,643, 2,873,478.90 and 850,398.68 is: 1,275,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,643 : 2,873,478.90 = 850,398.68 : x
  2. Step 2: Convert to fraction form
    1,915,643/2,873,478.90 = 850,398.68/x
  3. Step 3: Cross multiply
    1,915,643x = 2,873,478.90 × 850,398.68
  4. Step 4: Simplify right side
    1,915,643x = 2,443,602,663,567.85
  5. Step 5: Solve for x
    x = 2,443,602,663,567.85/1,915,643
  6. Step 6: Final answer
    x = 1,275,604.41

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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.