Home / 391,127.23-539,999.36-268,830.19

Finding the Fourth Proportional to 391,127.23, 539,999.36 and 268,830.19

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Solution

The fourth proportional to 391,127.23, 539,999.36 and 268,830.19 is: 371,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,127.23 : 539,999.36 = 268,830.19 : x
  2. Step 2: Convert to fraction form
    391,127.23/539,999.36 = 268,830.19/x
  3. Step 3: Cross multiply
    391,127.23x = 539,999.36 × 268,830.19
  4. Step 4: Simplify right side
    391,127.23x = 145,168,130,548.68
  5. Step 5: Solve for x
    x = 145,168,130,548.68/391,127.23
  6. Step 6: Final answer
    x = 371,153.22

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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.