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Finding the Fourth Proportional to 459,818.66, 634,190.28 and 298,725.62

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Solution

The fourth proportional to 459,818.66, 634,190.28 and 298,725.62 is: 412,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,818.66 : 634,190.28 = 298,725.62 : x
  2. Step 2: Convert to fraction form
    459,818.66/634,190.28 = 298,725.62/x
  3. Step 3: Cross multiply
    459,818.66x = 634,190.28 × 298,725.62
  4. Step 4: Simplify right side
    459,818.66x = 189,448,884,590.97
  5. Step 5: Solve for x
    x = 189,448,884,590.97/459,818.66
  6. Step 6: Final answer
    x = 412,007.82

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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.