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Finding the Fourth Proportional to 292,399.66, 438,774.45 and 268,605.10

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Solution

The fourth proportional to 292,399.66, 438,774.45 and 268,605.10 is: 403,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,399.66 : 438,774.45 = 268,605.10 : x
  2. Step 2: Convert to fraction form
    292,399.66/438,774.45 = 268,605.10/x
  3. Step 3: Cross multiply
    292,399.66x = 438,774.45 × 268,605.10
  4. Step 4: Simplify right side
    292,399.66x = 117,857,056,071.80
  5. Step 5: Solve for x
    x = 117,857,056,071.80/292,399.66
  6. Step 6: Final answer
    x = 403,068.37

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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.