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Finding the Fourth Proportional to 528,033.80, 792,050.70 and 440,942.60

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Solution

The fourth proportional to 528,033.80, 792,050.70 and 440,942.60 is: 661,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,033.80 : 792,050.70 = 440,942.60 : x
  2. Step 2: Convert to fraction form
    528,033.80/792,050.70 = 440,942.60/x
  3. Step 3: Cross multiply
    528,033.80x = 792,050.70 × 440,942.60
  4. Step 4: Simplify right side
    528,033.80x = 349,248,894,989.82
  5. Step 5: Solve for x
    x = 349,248,894,989.82/528,033.80
  6. Step 6: Final answer
    x = 661,413.90

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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.