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Finding the Fourth Proportional to 460,907.60, 691,879.80 and 356,190.80

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Solution

The fourth proportional to 460,907.60, 691,879.80 and 356,190.80 is: 534,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,907.60 : 691,879.80 = 356,190.80 : x
  2. Step 2: Convert to fraction form
    460,907.60/691,879.80 = 356,190.80/x
  3. Step 3: Cross multiply
    460,907.60x = 691,879.80 × 356,190.80
  4. Step 4: Simplify right side
    460,907.60x = 246,441,219,465.84
  5. Step 5: Solve for x
    x = 246,441,219,465.84/460,907.60
  6. Step 6: Final answer
    x = 534,686.82

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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.