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Finding the Fourth Proportional to 647,088.82, 892,611.36 and 404,950.90

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Solution

The fourth proportional to 647,088.82, 892,611.36 and 404,950.90 is: 558,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,088.82 : 892,611.36 = 404,950.90 : x
  2. Step 2: Convert to fraction form
    647,088.82/892,611.36 = 404,950.90/x
  3. Step 3: Cross multiply
    647,088.82x = 892,611.36 × 404,950.90
  4. Step 4: Simplify right side
    647,088.82x = 361,463,773,582.22
  5. Step 5: Solve for x
    x = 361,463,773,582.22/647,088.82
  6. Step 6: Final answer
    x = 558,599.94

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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.