Home / 403,860.53-557,353.84-231,834.19

Finding the Fourth Proportional to 403,860.53, 557,353.84 and 231,834.19

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Solution

The fourth proportional to 403,860.53, 557,353.84 and 231,834.19 is: 319,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,860.53 : 557,353.84 = 231,834.19 : x
  2. Step 2: Convert to fraction form
    403,860.53/557,353.84 = 231,834.19/x
  3. Step 3: Cross multiply
    403,860.53x = 557,353.84 × 231,834.19
  4. Step 4: Simplify right side
    403,860.53x = 129,213,676,039.79
  5. Step 5: Solve for x
    x = 129,213,676,039.79/403,860.53
  6. Step 6: Final answer
    x = 319,946.28

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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.