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Finding the Fourth Proportional to 988,509.38, 1,364,099.63 and 580,653

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Solution

The fourth proportional to 988,509.38, 1,364,099.63 and 580,653 is: 801,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,509.38 : 1,364,099.63 = 580,653 : x
  2. Step 2: Convert to fraction form
    988,509.38/1,364,099.63 = 580,653/x
  3. Step 3: Cross multiply
    988,509.38x = 1,364,099.63 × 580,653
  4. Step 4: Simplify right side
    988,509.38x = 792,068,539,555.13
  5. Step 5: Solve for x
    x = 792,068,539,555.13/988,509.38
  6. Step 6: Final answer
    x = 801,275.70

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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.