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Finding the Fourth Proportional to 418,019.91, 576,881.10 and 236,727.94

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Solution

The fourth proportional to 418,019.91, 576,881.10 and 236,727.94 is: 326,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,019.91 : 576,881.10 = 236,727.94 : x
  2. Step 2: Convert to fraction form
    418,019.91/576,881.10 = 236,727.94/x
  3. Step 3: Cross multiply
    418,019.91x = 576,881.10 × 236,727.94
  4. Step 4: Simplify right side
    418,019.91x = 136,563,874,427.93
  5. Step 5: Solve for x
    x = 136,563,874,427.93/418,019.91
  6. Step 6: Final answer
    x = 326,692.27

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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.