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Finding the Fourth Proportional to 493,670.40, 693,004.80 and 493,670.40

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Solution

The fourth proportional to 493,670.40, 693,004.80 and 493,670.40 is: 693,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,670.40 : 693,004.80 = 493,670.40 : x
  2. Step 2: Convert to fraction form
    493,670.40/693,004.80 = 493,670.40/x
  3. Step 3: Cross multiply
    493,670.40x = 693,004.80 × 493,670.40
  4. Step 4: Simplify right side
    493,670.40x = 342,115,956,817.92
  5. Step 5: Solve for x
    x = 342,115,956,817.92/493,670.40
  6. Step 6: Final answer
    x = 693,004.80

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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.