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Finding the Fourth Proportional to 587,653.15, 810,949.75 and 342,683.59

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Solution

The fourth proportional to 587,653.15, 810,949.75 and 342,683.59 is: 472,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,653.15 : 810,949.75 = 342,683.59 : x
  2. Step 2: Convert to fraction form
    587,653.15/810,949.75 = 342,683.59/x
  3. Step 3: Cross multiply
    587,653.15x = 810,949.75 × 342,683.59
  4. Step 4: Simplify right side
    587,653.15x = 277,899,171,639.60
  5. Step 5: Solve for x
    x = 277,899,171,639.60/587,653.15
  6. Step 6: Final answer
    x = 472,896.59

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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.