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Finding the Fourth Proportional to 375,980.67, 518,977.40 and 336,122.60

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Solution

The fourth proportional to 375,980.67, 518,977.40 and 336,122.60 is: 463,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,980.67 : 518,977.40 = 336,122.60 : x
  2. Step 2: Convert to fraction form
    375,980.67/518,977.40 = 336,122.60/x
  3. Step 3: Cross multiply
    375,980.67x = 518,977.40 × 336,122.60
  4. Step 4: Simplify right side
    375,980.67x = 174,440,028,753.74
  5. Step 5: Solve for x
    x = 174,440,028,753.74/375,980.67
  6. Step 6: Final answer
    x = 463,960.10

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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.