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Finding the Fourth Proportional to 431,149.14, 594,507.33 and 353,389.14

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Solution

The fourth proportional to 431,149.14, 594,507.33 and 353,389.14 is: 487,284.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,149.14 : 594,507.33 = 353,389.14 : x
  2. Step 2: Convert to fraction form
    431,149.14/594,507.33 = 353,389.14/x
  3. Step 3: Cross multiply
    431,149.14x = 594,507.33 × 353,389.14
  4. Step 4: Simplify right side
    431,149.14x = 210,092,434,072.40
  5. Step 5: Solve for x
    x = 210,092,434,072.40/431,149.14
  6. Step 6: Final answer
    x = 487,284.83

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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.