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Finding the Fourth Proportional to 551,928.40, 827,892.60 and 403,212.40

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Solution

The fourth proportional to 551,928.40, 827,892.60 and 403,212.40 is: 604,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,928.40 : 827,892.60 = 403,212.40 : x
  2. Step 2: Convert to fraction form
    551,928.40/827,892.60 = 403,212.40/x
  3. Step 3: Cross multiply
    551,928.40x = 827,892.60 × 403,212.40
  4. Step 4: Simplify right side
    551,928.40x = 333,816,562,188.24
  5. Step 5: Solve for x
    x = 333,816,562,188.24/551,928.40
  6. Step 6: Final answer
    x = 604,818.60

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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.