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Finding the Fourth Proportional to 536,584.68, 740,449.56 and 321,617.16

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Solution

The fourth proportional to 536,584.68, 740,449.56 and 321,617.16 is: 443,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,584.68 : 740,449.56 = 321,617.16 : x
  2. Step 2: Convert to fraction form
    536,584.68/740,449.56 = 321,617.16/x
  3. Step 3: Cross multiply
    536,584.68x = 740,449.56 × 321,617.16
  4. Step 4: Simplify right side
    536,584.68x = 238,141,284,610.45
  5. Step 5: Solve for x
    x = 238,141,284,610.45/536,584.68
  6. Step 6: Final answer
    x = 443,809.32

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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.