Home / 847,274.50-1,169,259.12-465,309.46

Finding the Fourth Proportional to 847,274.50, 1,169,259.12 and 465,309.46

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Solution

The fourth proportional to 847,274.50, 1,169,259.12 and 465,309.46 is: 642,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,274.50 : 1,169,259.12 = 465,309.46 : x
  2. Step 2: Convert to fraction form
    847,274.50/1,169,259.12 = 465,309.46/x
  3. Step 3: Cross multiply
    847,274.50x = 1,169,259.12 × 465,309.46
  4. Step 4: Simplify right side
    847,274.50x = 544,067,329,727.28
  5. Step 5: Solve for x
    x = 544,067,329,727.28/847,274.50
  6. Step 6: Final answer
    x = 642,138.21

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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.