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Finding the Fourth Proportional to 584,705.72, 806,893.88 and 316,433.72

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Solution

The fourth proportional to 584,705.72, 806,893.88 and 316,433.72 is: 436,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,705.72 : 806,893.88 = 316,433.72 : x
  2. Step 2: Convert to fraction form
    584,705.72/806,893.88 = 316,433.72/x
  3. Step 3: Cross multiply
    584,705.72x = 806,893.88 × 316,433.72
  4. Step 4: Simplify right side
    584,705.72x = 255,328,432,093.63
  5. Step 5: Solve for x
    x = 255,328,432,093.63/584,705.72
  6. Step 6: Final answer
    x = 436,678.53

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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.