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Finding the Fourth Proportional to 464,003.82, 640,294.92 and 272,980.32

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Solution

The fourth proportional to 464,003.82, 640,294.92 and 272,980.32 is: 376,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,003.82 : 640,294.92 = 272,980.32 : x
  2. Step 2: Convert to fraction form
    464,003.82/640,294.92 = 272,980.32/x
  3. Step 3: Cross multiply
    464,003.82x = 640,294.92 × 272,980.32
  4. Step 4: Simplify right side
    464,003.82x = 174,787,912,155.97
  5. Step 5: Solve for x
    x = 174,787,912,155.97/464,003.82
  6. Step 6: Final answer
    x = 376,694.99

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1.5x scale

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.