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Finding the Fourth Proportional to 292,462.72, 438,868.86 and 268,668.16

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Solution

The fourth proportional to 292,462.72, 438,868.86 and 268,668.16 is: 403,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,462.72 : 438,868.86 = 268,668.16 : x
  2. Step 2: Convert to fraction form
    292,462.72/438,868.86 = 268,668.16/x
  3. Step 3: Cross multiply
    292,462.72x = 438,868.86 × 268,668.16
  4. Step 4: Simplify right side
    292,462.72x = 117,910,089,097.50
  5. Step 5: Solve for x
    x = 117,910,089,097.50/292,462.72
  6. Step 6: Final answer
    x = 403,162.80

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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.