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Finding the Fourth Proportional to 459,337.92, 634,063.62 and 306,320.82

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Solution

The fourth proportional to 459,337.92, 634,063.62 and 306,320.82 is: 422,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,337.92 : 634,063.62 = 306,320.82 : x
  2. Step 2: Convert to fraction form
    459,337.92/634,063.62 = 306,320.82/x
  3. Step 3: Cross multiply
    459,337.92x = 634,063.62 × 306,320.82
  4. Step 4: Simplify right side
    459,337.92x = 194,226,888,010.57
  5. Step 5: Solve for x
    x = 194,226,888,010.57/459,337.92
  6. Step 6: Final answer
    x = 422,840.96

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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.