Home / 629,886.04-869,255.79-354,249.18

Finding the Fourth Proportional to 629,886.04, 869,255.79 and 354,249.18

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Solution

The fourth proportional to 629,886.04, 869,255.79 and 354,249.18 is: 488,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,886.04 : 869,255.79 = 354,249.18 : x
  2. Step 2: Convert to fraction form
    629,886.04/869,255.79 = 354,249.18/x
  3. Step 3: Cross multiply
    629,886.04x = 869,255.79 × 354,249.18
  4. Step 4: Simplify right side
    629,886.04x = 307,933,149,489.32
  5. Step 5: Solve for x
    x = 307,933,149,489.32/629,886.04
  6. Step 6: Final answer
    x = 488,871.21

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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.