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Finding the Fourth Proportional to 524,107.96, 723,264.69 and 330,640.64

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Solution

The fourth proportional to 524,107.96, 723,264.69 and 330,640.64 is: 456,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,107.96 : 723,264.69 = 330,640.64 : x
  2. Step 2: Convert to fraction form
    524,107.96/723,264.69 = 330,640.64/x
  3. Step 3: Cross multiply
    524,107.96x = 723,264.69 × 330,640.64
  4. Step 4: Simplify right side
    524,107.96x = 239,140,699,571.23
  5. Step 5: Solve for x
    x = 239,140,699,571.23/524,107.96
  6. Step 6: Final answer
    x = 456,281.37

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Double scale
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Similar ratio
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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.