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Finding the Fourth Proportional to 718,997.74, 992,576.46 and 447,153.22

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Solution

The fourth proportional to 718,997.74, 992,576.46 and 447,153.22 is: 617,295.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,997.74 : 992,576.46 = 447,153.22 : x
  2. Step 2: Convert to fraction form
    718,997.74/992,576.46 = 447,153.22/x
  3. Step 3: Cross multiply
    718,997.74x = 992,576.46 × 447,153.22
  4. Step 4: Simplify right side
    718,997.74x = 443,833,760,185.20
  5. Step 5: Solve for x
    x = 443,833,760,185.20/718,997.74
  6. Step 6: Final answer
    x = 617,295.07

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Double scale
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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.