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Finding the Fourth Proportional to 529,039.80, 792,393.30 and 459,055.80

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Solution

The fourth proportional to 529,039.80, 792,393.30 and 459,055.80 is: 687,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,039.80 : 792,393.30 = 459,055.80 : x
  2. Step 2: Convert to fraction form
    529,039.80/792,393.30 = 459,055.80/x
  3. Step 3: Cross multiply
    529,039.80x = 792,393.30 × 459,055.80
  4. Step 4: Simplify right side
    529,039.80x = 363,752,740,246.14
  5. Step 5: Solve for x
    x = 363,752,740,246.14/529,039.80
  6. Step 6: Final answer
    x = 687,571.60

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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.