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Finding the Fourth Proportional to 476,374.91, 714,018.78 and 191,883.26

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Solution

The fourth proportional to 476,374.91, 714,018.78 and 191,883.26 is: 287,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,374.91 : 714,018.78 = 191,883.26 : x
  2. Step 2: Convert to fraction form
    476,374.91/714,018.78 = 191,883.26/x
  3. Step 3: Cross multiply
    476,374.91x = 714,018.78 × 191,883.26
  4. Step 4: Simplify right side
    476,374.91x = 137,008,252,992.67
  5. Step 5: Solve for x
    x = 137,008,252,992.67/476,374.91
  6. Step 6: Final answer
    x = 287,605.94

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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.