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Finding the Fourth Proportional to 487,718.60, 683,272.60 and 487,718.60

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Solution

The fourth proportional to 487,718.60, 683,272.60 and 487,718.60 is: 683,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,718.60 : 683,272.60 = 487,718.60 : x
  2. Step 2: Convert to fraction form
    487,718.60/683,272.60 = 487,718.60/x
  3. Step 3: Cross multiply
    487,718.60x = 683,272.60 × 487,718.60
  4. Step 4: Simplify right side
    487,718.60x = 333,244,755,890.36
  5. Step 5: Solve for x
    x = 333,244,755,890.36/487,718.60
  6. Step 6: Final answer
    x = 683,272.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.