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Finding the Fourth Proportional to 423,408.15, 584,281.49 and 251,333.37

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Solution

The fourth proportional to 423,408.15, 584,281.49 and 251,333.37 is: 346,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,408.15 : 584,281.49 = 251,333.37 : x
  2. Step 2: Convert to fraction form
    423,408.15/584,281.49 = 251,333.37/x
  3. Step 3: Cross multiply
    423,408.15x = 584,281.49 × 251,333.37
  4. Step 4: Simplify right side
    423,408.15x = 146,849,434,653.65
  5. Step 5: Solve for x
    x = 146,849,434,653.65/423,408.15
  6. Step 6: Final answer
    x = 346,827.13

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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.