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Finding the Fourth Proportional to 617,590.65, 925,743.69 and 238,771.56

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Solution

The fourth proportional to 617,590.65, 925,743.69 and 238,771.56 is: 357,909.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,590.65 : 925,743.69 = 238,771.56 : x
  2. Step 2: Convert to fraction form
    617,590.65/925,743.69 = 238,771.56/x
  3. Step 3: Cross multiply
    617,590.65x = 925,743.69 × 238,771.56
  4. Step 4: Simplify right side
    617,590.65x = 221,041,265,021.46
  5. Step 5: Solve for x
    x = 221,041,265,021.46/617,590.65
  6. Step 6: Final answer
    x = 357,909.02

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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.