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Finding the Fourth Proportional to 603,463.80, 905,317.20 and 176,998.80

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Solution

The fourth proportional to 603,463.80, 905,317.20 and 176,998.80 is: 265,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,463.80 : 905,317.20 = 176,998.80 : x
  2. Step 2: Convert to fraction form
    603,463.80/905,317.20 = 176,998.80/x
  3. Step 3: Cross multiply
    603,463.80x = 905,317.20 × 176,998.80
  4. Step 4: Simplify right side
    603,463.80x = 160,240,058,019.36
  5. Step 5: Solve for x
    x = 160,240,058,019.36/603,463.80
  6. Step 6: Final answer
    x = 265,533.84

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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.