Home / 511,140.61-705,378.81-281,706.13

Finding the Fourth Proportional to 511,140.61, 705,378.81 and 281,706.13

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Solution

The fourth proportional to 511,140.61, 705,378.81 and 281,706.13 is: 388,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,140.61 : 705,378.81 = 281,706.13 : x
  2. Step 2: Convert to fraction form
    511,140.61/705,378.81 = 281,706.13/x
  3. Step 3: Cross multiply
    511,140.61x = 705,378.81 × 281,706.13
  4. Step 4: Simplify right side
    511,140.61x = 198,709,534,749.11
  5. Step 5: Solve for x
    x = 198,709,534,749.11/511,140.61
  6. Step 6: Final answer
    x = 388,757.09

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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.