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Finding the Fourth Proportional to 550,913.60, 824,793.60 and 339,125.60

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Solution

The fourth proportional to 550,913.60, 824,793.60 and 339,125.60 is: 507,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,913.60 : 824,793.60 = 339,125.60 : x
  2. Step 2: Convert to fraction form
    550,913.60/824,793.60 = 339,125.60/x
  3. Step 3: Cross multiply
    550,913.60x = 824,793.60 × 339,125.60
  4. Step 4: Simplify right side
    550,913.60x = 279,708,624,476.16
  5. Step 5: Solve for x
    x = 279,708,624,476.16/550,913.60
  6. Step 6: Final answer
    x = 507,717.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.