Home / 629,385.53-868,561.99-342,905.54

Finding the Fourth Proportional to 629,385.53, 868,561.99 and 342,905.54

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Solution

The fourth proportional to 629,385.53, 868,561.99 and 342,905.54 is: 473,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,385.53 : 868,561.99 = 342,905.54 : x
  2. Step 2: Convert to fraction form
    629,385.53/868,561.99 = 342,905.54/x
  3. Step 3: Cross multiply
    629,385.53x = 868,561.99 × 342,905.54
  4. Step 4: Simplify right side
    629,385.53x = 297,834,713,004.35
  5. Step 5: Solve for x
    x = 297,834,713,004.35/629,385.53
  6. Step 6: Final answer
    x = 473,215.07

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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.