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Finding the Fourth Proportional to 456,230.20, 685,511.70 and 404,908.60

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Solution

The fourth proportional to 456,230.20, 685,511.70 and 404,908.60 is: 608,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,230.20 : 685,511.70 = 404,908.60 : x
  2. Step 2: Convert to fraction form
    456,230.20/685,511.70 = 404,908.60/x
  3. Step 3: Cross multiply
    456,230.20x = 685,511.70 × 404,908.60
  4. Step 4: Simplify right side
    456,230.20x = 277,569,582,730.62
  5. Step 5: Solve for x
    x = 277,569,582,730.62/456,230.20
  6. Step 6: Final answer
    x = 608,398.09

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1.5x scale

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.