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Finding the Fourth Proportional to 405,888.32, 560,282.88 and 363,372.96

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Solution

The fourth proportional to 405,888.32, 560,282.88 and 363,372.96 is: 501,595.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,888.32 : 560,282.88 = 363,372.96 : x
  2. Step 2: Convert to fraction form
    405,888.32/560,282.88 = 363,372.96/x
  3. Step 3: Cross multiply
    405,888.32x = 560,282.88 × 363,372.96
  4. Step 4: Simplify right side
    405,888.32x = 203,591,648,542.93
  5. Step 5: Solve for x
    x = 203,591,648,542.93/405,888.32
  6. Step 6: Final answer
    x = 501,595.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.