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Finding the Fourth Proportional to 519,391.90, 778,893.45 and 182,302.30

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Solution

The fourth proportional to 519,391.90, 778,893.45 and 182,302.30 is: 273,385.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,391.90 : 778,893.45 = 182,302.30 : x
  2. Step 2: Convert to fraction form
    519,391.90/778,893.45 = 182,302.30/x
  3. Step 3: Cross multiply
    519,391.90x = 778,893.45 × 182,302.30
  4. Step 4: Simplify right side
    519,391.90x = 141,994,067,389.94
  5. Step 5: Solve for x
    x = 141,994,067,389.94/519,391.90
  6. Step 6: Final answer
    x = 273,385.22

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1.5x scale

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.