Home / 403,494.09-556,810.79-231,440.91

Finding the Fourth Proportional to 403,494.09, 556,810.79 and 231,440.91

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Solution

The fourth proportional to 403,494.09, 556,810.79 and 231,440.91 is: 319,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,494.09 : 556,810.79 = 231,440.91 : x
  2. Step 2: Convert to fraction form
    403,494.09/556,810.79 = 231,440.91/x
  3. Step 3: Cross multiply
    403,494.09x = 556,810.79 × 231,440.91
  4. Step 4: Simplify right side
    403,494.09x = 128,868,794,778.21
  5. Step 5: Solve for x
    x = 128,868,794,778.21/403,494.09
  6. Step 6: Final answer
    x = 319,382.11

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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.