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Finding the Fourth Proportional to 552,649.20, 828,973.80 and 178,672.20

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Solution

The fourth proportional to 552,649.20, 828,973.80 and 178,672.20 is: 268,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,649.20 : 828,973.80 = 178,672.20 : x
  2. Step 2: Convert to fraction form
    552,649.20/828,973.80 = 178,672.20/x
  3. Step 3: Cross multiply
    552,649.20x = 828,973.80 × 178,672.20
  4. Step 4: Simplify right side
    552,649.20x = 148,114,572,588.36
  5. Step 5: Solve for x
    x = 148,114,572,588.36/552,649.20
  6. Step 6: Final answer
    x = 268,008.30

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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.