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Finding the Fourth Proportional to 584,640.44, 877,231.30 and 318,083.40

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Solution

The fourth proportional to 584,640.44, 877,231.30 and 318,083.40 is: 477,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,640.44 : 877,231.30 = 318,083.40 : x
  2. Step 2: Convert to fraction form
    584,640.44/877,231.30 = 318,083.40/x
  3. Step 3: Cross multiply
    584,640.44x = 877,231.30 × 318,083.40
  4. Step 4: Simplify right side
    584,640.44x = 279,032,714,490.42
  5. Step 5: Solve for x
    x = 279,032,714,490.42/584,640.44
  6. Step 6: Final answer
    x = 477,272.35

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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.