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Finding the Fourth Proportional to 474,339.38, 654,483.35 and 290,616.73

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Solution

The fourth proportional to 474,339.38, 654,483.35 and 290,616.73 is: 400,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,339.38 : 654,483.35 = 290,616.73 : x
  2. Step 2: Convert to fraction form
    474,339.38/654,483.35 = 290,616.73/x
  3. Step 3: Cross multiply
    474,339.38x = 654,483.35 × 290,616.73
  4. Step 4: Simplify right side
    474,339.38x = 190,203,810,106.78
  5. Step 5: Solve for x
    x = 190,203,810,106.78/474,339.38
  6. Step 6: Final answer
    x = 400,986.76

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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.