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Finding the Fourth Proportional to 403,336.20, 605,004.30 and 167,140.20

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Solution

The fourth proportional to 403,336.20, 605,004.30 and 167,140.20 is: 250,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,336.20 : 605,004.30 = 167,140.20 : x
  2. Step 2: Convert to fraction form
    403,336.20/605,004.30 = 167,140.20/x
  3. Step 3: Cross multiply
    403,336.20x = 605,004.30 × 167,140.20
  4. Step 4: Simplify right side
    403,336.20x = 101,120,539,702.86
  5. Step 5: Solve for x
    x = 101,120,539,702.86/403,336.20
  6. Step 6: Final answer
    x = 250,710.30

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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.