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Finding the Fourth Proportional to 443,663.36, 612,280.32 and 292,653.44

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Solution

The fourth proportional to 443,663.36, 612,280.32 and 292,653.44 is: 403,878.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,663.36 : 612,280.32 = 292,653.44 : x
  2. Step 2: Convert to fraction form
    443,663.36/612,280.32 = 292,653.44/x
  3. Step 3: Cross multiply
    443,663.36x = 612,280.32 × 292,653.44
  4. Step 4: Simplify right side
    443,663.36x = 179,185,941,892.30
  5. Step 5: Solve for x
    x = 179,185,941,892.30/443,663.36
  6. Step 6: Final answer
    x = 403,878.16

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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.