Home / 626,893.83-865,115.24-340,418.70

Finding the Fourth Proportional to 626,893.83, 865,115.24 and 340,418.70

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Solution

The fourth proportional to 626,893.83, 865,115.24 and 340,418.70 is: 469,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,893.83 : 865,115.24 = 340,418.70 : x
  2. Step 2: Convert to fraction form
    626,893.83/865,115.24 = 340,418.70/x
  3. Step 3: Cross multiply
    626,893.83x = 865,115.24 × 340,418.70
  4. Step 4: Simplify right side
    626,893.83x = 294,501,403,648.90
  5. Step 5: Solve for x
    x = 294,501,403,648.90/626,893.83
  6. Step 6: Final answer
    x = 469,778.76

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1.5x scale

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.