Home / 809,242.20-1,116,587.49-465,011.61

Finding the Fourth Proportional to 809,242.20, 1,116,587.49 and 465,011.61

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Solution

The fourth proportional to 809,242.20, 1,116,587.49 and 465,011.61 is: 641,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,242.20 : 1,116,587.49 = 465,011.61 : x
  2. Step 2: Convert to fraction form
    809,242.20/1,116,587.49 = 465,011.61/x
  3. Step 3: Cross multiply
    809,242.20x = 1,116,587.49 × 465,011.61
  4. Step 4: Simplify right side
    809,242.20x = 519,226,146,430.76
  5. Step 5: Solve for x
    x = 519,226,146,430.76/809,242.20
  6. Step 6: Final answer
    x = 641,620.21

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1.5x scale

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.