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Finding the Fourth Proportional to 446,178.72, 615,728.88 and 255,200.16

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Solution

The fourth proportional to 446,178.72, 615,728.88 and 255,200.16 is: 352,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,178.72 : 615,728.88 = 255,200.16 : x
  2. Step 2: Convert to fraction form
    446,178.72/615,728.88 = 255,200.16/x
  3. Step 3: Cross multiply
    446,178.72x = 615,728.88 × 255,200.16
  4. Step 4: Simplify right side
    446,178.72x = 157,134,108,692.62
  5. Step 5: Solve for x
    x = 157,134,108,692.62/446,178.72
  6. Step 6: Final answer
    x = 352,177.51

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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.