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Finding the Fourth Proportional to 582,728.77, 874,093.16 and 209,014.21

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Solution

The fourth proportional to 582,728.77, 874,093.16 and 209,014.21 is: 313,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,728.77 : 874,093.16 = 209,014.21 : x
  2. Step 2: Convert to fraction form
    582,728.77/874,093.16 = 209,014.21/x
  3. Step 3: Cross multiply
    582,728.77x = 874,093.16 × 209,014.21
  4. Step 4: Simplify right side
    582,728.77x = 182,697,890,258.73
  5. Step 5: Solve for x
    x = 182,697,890,258.73/582,728.77
  6. Step 6: Final answer
    x = 313,521.32

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