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Finding the Fourth Proportional to 387,028.95, 580,239.22 and 244,574.61

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Solution

The fourth proportional to 387,028.95, 580,239.22 and 244,574.61 is: 366,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,028.95 : 580,239.22 = 244,574.61 : x
  2. Step 2: Convert to fraction form
    387,028.95/580,239.22 = 244,574.61/x
  3. Step 3: Cross multiply
    387,028.95x = 580,239.22 × 244,574.61
  4. Step 4: Simplify right side
    387,028.95x = 141,911,779,297.31
  5. Step 5: Solve for x
    x = 141,911,779,297.31/387,028.95
  6. Step 6: Final answer
    x = 366,669.67

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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.