Home / 656,918.70-985,071.78-341,290.86

Finding the Fourth Proportional to 656,918.70, 985,071.78 and 341,290.86

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Solution

The fourth proportional to 656,918.70, 985,071.78 and 341,290.86 is: 511,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,918.70 : 985,071.78 = 341,290.86 : x
  2. Step 2: Convert to fraction form
    656,918.70/985,071.78 = 341,290.86/x
  3. Step 3: Cross multiply
    656,918.70x = 985,071.78 × 341,290.86
  4. Step 4: Simplify right side
    656,918.70x = 336,195,994,957.93
  5. Step 5: Solve for x
    x = 336,195,994,957.93/656,918.70
  6. Step 6: Final answer
    x = 511,777.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.