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Finding the Fourth Proportional to 582,619.72, 804,030.42 and 327,980.20

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Solution

The fourth proportional to 582,619.72, 804,030.42 and 327,980.20 is: 452,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,619.72 : 804,030.42 = 327,980.20 : x
  2. Step 2: Convert to fraction form
    582,619.72/804,030.42 = 327,980.20/x
  3. Step 3: Cross multiply
    582,619.72x = 804,030.42 × 327,980.20
  4. Step 4: Simplify right side
    582,619.72x = 263,706,057,957.68
  5. Step 5: Solve for x
    x = 263,706,057,957.68/582,619.72
  6. Step 6: Final answer
    x = 452,621.24

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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.