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Finding the Fourth Proportional to 459,683.92, 688,100.28 and 248,798.80

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Solution

The fourth proportional to 459,683.92, 688,100.28 and 248,798.80 is: 372,426.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,683.92 : 688,100.28 = 248,798.80 : x
  2. Step 2: Convert to fraction form
    459,683.92/688,100.28 = 248,798.80/x
  3. Step 3: Cross multiply
    459,683.92x = 688,100.28 × 248,798.80
  4. Step 4: Simplify right side
    459,683.92x = 171,198,523,943.66
  5. Step 5: Solve for x
    x = 171,198,523,943.66/459,683.92
  6. Step 6: Final answer
    x = 372,426.61

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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.