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Finding the Fourth Proportional to 448,554.86, 672,070.64 and 270,688.13

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Solution

The fourth proportional to 448,554.86, 672,070.64 and 270,688.13 is: 405,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,554.86 : 672,070.64 = 270,688.13 : x
  2. Step 2: Convert to fraction form
    448,554.86/672,070.64 = 270,688.13/x
  3. Step 3: Cross multiply
    448,554.86x = 672,070.64 × 270,688.13
  4. Step 4: Simplify right side
    448,554.86x = 181,921,540,732.43
  5. Step 5: Solve for x
    x = 181,921,540,732.43/448,554.86
  6. Step 6: Final answer
    x = 405,572.55

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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.