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Finding the Fourth Proportional to 515,986.81, 773,952.87 and 160,960.16

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Solution

The fourth proportional to 515,986.81, 773,952.87 and 160,960.16 is: 241,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,986.81 : 773,952.87 = 160,960.16 : x
  2. Step 2: Convert to fraction form
    515,986.81/773,952.87 = 160,960.16/x
  3. Step 3: Cross multiply
    515,986.81x = 773,952.87 × 160,960.16
  4. Step 4: Simplify right side
    515,986.81x = 124,575,580,326.14
  5. Step 5: Solve for x
    x = 124,575,580,326.14/515,986.81
  6. Step 6: Final answer
    x = 241,431.72

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1.5x scale

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.