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Finding the Fourth Proportional to 448,649.02, 672,109.80 and 353,375.20

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Solution

The fourth proportional to 448,649.02, 672,109.80 and 353,375.20 is: 529,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,649.02 : 672,109.80 = 353,375.20 : x
  2. Step 2: Convert to fraction form
    448,649.02/672,109.80 = 353,375.20/x
  3. Step 3: Cross multiply
    448,649.02x = 672,109.80 × 353,375.20
  4. Step 4: Simplify right side
    448,649.02x = 237,506,934,996.96
  5. Step 5: Solve for x
    x = 237,506,934,996.96/448,649.02
  6. Step 6: Final answer
    x = 529,382.49

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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.