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Finding the Fourth Proportional to 446,963.70, 670,445.55 and 166,422.90

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Solution

The fourth proportional to 446,963.70, 670,445.55 and 166,422.90 is: 249,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,963.70 : 670,445.55 = 166,422.90 : x
  2. Step 2: Convert to fraction form
    446,963.70/670,445.55 = 166,422.90/x
  3. Step 3: Cross multiply
    446,963.70x = 670,445.55 × 166,422.90
  4. Step 4: Simplify right side
    446,963.70x = 111,577,492,723.10
  5. Step 5: Solve for x
    x = 111,577,492,723.10/446,963.70
  6. Step 6: Final answer
    x = 249,634.35

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Double scale
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Similar ratio
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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.