Home / 781,464.20-1,171,392.34-355,296.47

Finding the Fourth Proportional to 781,464.20, 1,171,392.34 and 355,296.47

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Solution

The fourth proportional to 781,464.20, 1,171,392.34 and 355,296.47 is: 532,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,464.20 : 1,171,392.34 = 355,296.47 : x
  2. Step 2: Convert to fraction form
    781,464.20/1,171,392.34 = 355,296.47/x
  3. Step 3: Cross multiply
    781,464.20x = 1,171,392.34 × 355,296.47
  4. Step 4: Simplify right side
    781,464.20x = 416,191,556,641.84
  5. Step 5: Solve for x
    x = 416,191,556,641.84/781,464.20
  6. Step 6: Final answer
    x = 532,579.18

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1.5x scale

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.