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Finding the Fourth Proportional to 347,768.60, 487,925.80 and 347,768.60

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Solution

The fourth proportional to 347,768.60, 487,925.80 and 347,768.60 is: 487,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,768.60 : 487,925.80 = 347,768.60 : x
  2. Step 2: Convert to fraction form
    347,768.60/487,925.80 = 347,768.60/x
  3. Step 3: Cross multiply
    347,768.60x = 487,925.80 × 347,768.60
  4. Step 4: Simplify right side
    347,768.60x = 169,685,272,369.88
  5. Step 5: Solve for x
    x = 169,685,272,369.88/347,768.60
  6. Step 6: Final answer
    x = 487,925.80

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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.