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Finding the Fourth Proportional to 464,736.80, 697,105.20 and 371,424.80

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Solution

The fourth proportional to 464,736.80, 697,105.20 and 371,424.80 is: 557,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,736.80 : 697,105.20 = 371,424.80 : x
  2. Step 2: Convert to fraction form
    464,736.80/697,105.20 = 371,424.80/x
  3. Step 3: Cross multiply
    464,736.80x = 697,105.20 × 371,424.80
  4. Step 4: Simplify right side
    464,736.80x = 258,922,159,488.96
  5. Step 5: Solve for x
    x = 258,922,159,488.96/464,736.80
  6. Step 6: Final answer
    x = 557,137.20

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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.