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Finding the Fourth Proportional to 338,414.08, 507,626.24 and 128,151.04

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Solution

The fourth proportional to 338,414.08, 507,626.24 and 128,151.04 is: 192,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,414.08 : 507,626.24 = 128,151.04 : x
  2. Step 2: Convert to fraction form
    338,414.08/507,626.24 = 128,151.04/x
  3. Step 3: Cross multiply
    338,414.08x = 507,626.24 × 128,151.04
  4. Step 4: Simplify right side
    338,414.08x = 65,052,830,587.29
  5. Step 5: Solve for x
    x = 65,052,830,587.29/338,414.08
  6. Step 6: Final answer
    x = 192,228.50

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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.