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Finding the Fourth Proportional to 292,447.68, 438,846.48 and 268,653.12

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Solution

The fourth proportional to 292,447.68, 438,846.48 and 268,653.12 is: 403,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,447.68 : 438,846.48 = 268,653.12 : x
  2. Step 2: Convert to fraction form
    292,447.68/438,846.48 = 268,653.12/x
  3. Step 3: Cross multiply
    292,447.68x = 438,846.48 × 268,653.12
  4. Step 4: Simplify right side
    292,447.68x = 117,897,476,053.02
  5. Step 5: Solve for x
    x = 117,897,476,053.02/292,447.68
  6. Step 6: Final answer
    x = 403,140.40

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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.