Home / 419,759.09-579,283.18-238,501.72

Finding the Fourth Proportional to 419,759.09, 579,283.18 and 238,501.72

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Solution

The fourth proportional to 419,759.09, 579,283.18 and 238,501.72 is: 329,141.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,759.09 : 579,283.18 = 238,501.72 : x
  2. Step 2: Convert to fraction form
    419,759.09/579,283.18 = 238,501.72/x
  3. Step 3: Cross multiply
    419,759.09x = 579,283.18 × 238,501.72
  4. Step 4: Simplify right side
    419,759.09x = 138,160,032,672.63
  5. Step 5: Solve for x
    x = 138,160,032,672.63/419,759.09
  6. Step 6: Final answer
    x = 329,141.26

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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.