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Finding the Fourth Proportional to 582,144.96, 873,217.44 and 208,145.28

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Solution

The fourth proportional to 582,144.96, 873,217.44 and 208,145.28 is: 312,217.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,144.96 : 873,217.44 = 208,145.28 : x
  2. Step 2: Convert to fraction form
    582,144.96/873,217.44 = 208,145.28/x
  3. Step 3: Cross multiply
    582,144.96x = 873,217.44 × 208,145.28
  4. Step 4: Simplify right side
    582,144.96x = 181,756,088,549.68
  5. Step 5: Solve for x
    x = 181,756,088,549.68/582,144.96
  6. Step 6: Final answer
    x = 312,217.92

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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.