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Finding the Fourth Proportional to 404,320.58, 606,416.58 and 134,426.28

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Solution

The fourth proportional to 404,320.58, 606,416.58 and 134,426.28 is: 201,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,320.58 : 606,416.58 = 134,426.28 : x
  2. Step 2: Convert to fraction form
    404,320.58/606,416.58 = 134,426.28/x
  3. Step 3: Cross multiply
    404,320.58x = 606,416.58 × 134,426.28
  4. Step 4: Simplify right side
    404,320.58x = 81,518,324,979.72
  5. Step 5: Solve for x
    x = 81,518,324,979.72/404,320.58
  6. Step 6: Final answer
    x = 201,618.05

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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.