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Finding the Fourth Proportional to 349,718.70, 524,578.05 and 96,998.70

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Solution

The fourth proportional to 349,718.70, 524,578.05 and 96,998.70 is: 145,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,718.70 : 524,578.05 = 96,998.70 : x
  2. Step 2: Convert to fraction form
    349,718.70/524,578.05 = 96,998.70/x
  3. Step 3: Cross multiply
    349,718.70x = 524,578.05 × 96,998.70
  4. Step 4: Simplify right side
    349,718.70x = 50,883,388,898.54
  5. Step 5: Solve for x
    x = 50,883,388,898.54/349,718.70
  6. Step 6: Final answer
    x = 145,498.05

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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.