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Finding the Fourth Proportional to 477,438.50, 658,875.67 and 262,589.45

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Solution

The fourth proportional to 477,438.50, 658,875.67 and 262,589.45 is: 362,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,438.50 : 658,875.67 = 262,589.45 : x
  2. Step 2: Convert to fraction form
    477,438.50/658,875.67 = 262,589.45/x
  3. Step 3: Cross multiply
    477,438.50x = 658,875.67 × 262,589.45
  4. Step 4: Simplify right side
    477,438.50x = 173,013,795,852.83
  5. Step 5: Solve for x
    x = 173,013,795,852.83/477,438.50
  6. Step 6: Final answer
    x = 362,379.23

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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.