Home / 656,325.36-905,729.40-354,519.36

Finding the Fourth Proportional to 656,325.36, 905,729.40 and 354,519.36

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Solution

The fourth proportional to 656,325.36, 905,729.40 and 354,519.36 is: 489,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,325.36 : 905,729.40 = 354,519.36 : x
  2. Step 2: Convert to fraction form
    656,325.36/905,729.40 = 354,519.36/x
  3. Step 3: Cross multiply
    656,325.36x = 905,729.40 × 354,519.36
  4. Step 4: Simplify right side
    656,325.36x = 321,098,607,221.18
  5. Step 5: Solve for x
    x = 321,098,607,221.18/656,325.36
  6. Step 6: Final answer
    x = 489,236.93

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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.