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Finding the Fourth Proportional to 476,376.90, 714,021.78 and 191,885.26

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Solution

The fourth proportional to 476,376.90, 714,021.78 and 191,885.26 is: 287,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,376.90 : 714,021.78 = 191,885.26 : x
  2. Step 2: Convert to fraction form
    476,376.90/714,021.78 = 191,885.26/x
  3. Step 3: Cross multiply
    476,376.90x = 714,021.78 × 191,885.26
  4. Step 4: Simplify right side
    476,376.90x = 137,010,254,900.96
  5. Step 5: Solve for x
    x = 137,010,254,900.96/476,376.90
  6. Step 6: Final answer
    x = 287,608.94

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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.