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Finding the Fourth Proportional to 439,762.85, 606,873.90 and 238,558.85

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Solution

The fourth proportional to 439,762.85, 606,873.90 and 238,558.85 is: 329,211.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,762.85 : 606,873.90 = 238,558.85 : x
  2. Step 2: Convert to fraction form
    439,762.85/606,873.90 = 238,558.85/x
  3. Step 3: Cross multiply
    439,762.85x = 606,873.90 × 238,558.85
  4. Step 4: Simplify right side
    439,762.85x = 144,775,136,644.65
  5. Step 5: Solve for x
    x = 144,775,136,644.65/439,762.85
  6. Step 6: Final answer
    x = 329,211.84

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1.5x scale

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.