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Finding the Fourth Proportional to 582,145.96, 873,218.94 and 208,146.28

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Solution

The fourth proportional to 582,145.96, 873,218.94 and 208,146.28 is: 312,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,145.96 : 873,218.94 = 208,146.28 : x
  2. Step 2: Convert to fraction form
    582,145.96/873,218.94 = 208,146.28/x
  3. Step 3: Cross multiply
    582,145.96x = 873,218.94 × 208,146.28
  4. Step 4: Simplify right side
    582,145.96x = 181,757,273,986.54
  5. Step 5: Solve for x
    x = 181,757,273,986.54/582,145.96
  6. Step 6: Final answer
    x = 312,219.42

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.