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Finding the Fourth Proportional to 448,316.26, 672,343.16 and 369,234.34

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Solution

The fourth proportional to 448,316.26, 672,343.16 and 369,234.34 is: 553,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,316.26 : 672,343.16 = 369,234.34 : x
  2. Step 2: Convert to fraction form
    448,316.26/672,343.16 = 369,234.34/x
  3. Step 3: Cross multiply
    448,316.26x = 672,343.16 × 369,234.34
  4. Step 4: Simplify right side
    448,316.26x = 248,252,177,728.23
  5. Step 5: Solve for x
    x = 248,252,177,728.23/448,316.26
  6. Step 6: Final answer
    x = 553,743.42

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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.