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Finding the Fourth Proportional to 464,964.20, 697,446.30 and 405,915.20

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Solution

The fourth proportional to 464,964.20, 697,446.30 and 405,915.20 is: 608,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,964.20 : 697,446.30 = 405,915.20 : x
  2. Step 2: Convert to fraction form
    464,964.20/697,446.30 = 405,915.20/x
  3. Step 3: Cross multiply
    464,964.20x = 697,446.30 × 405,915.20
  4. Step 4: Simplify right side
    464,964.20x = 283,104,054,353.76
  5. Step 5: Solve for x
    x = 283,104,054,353.76/464,964.20
  6. Step 6: Final answer
    x = 608,872.80

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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.