Home / 945,878.21-1,305,339.69-516,186.06

Finding the Fourth Proportional to 945,878.21, 1,305,339.69 and 516,186.06

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Solution

The fourth proportional to 945,878.21, 1,305,339.69 and 516,186.06 is: 712,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,878.21 : 1,305,339.69 = 516,186.06 : x
  2. Step 2: Convert to fraction form
    945,878.21/1,305,339.69 = 516,186.06/x
  3. Step 3: Cross multiply
    945,878.21x = 1,305,339.69 × 516,186.06
  4. Step 4: Simplify right side
    945,878.21x = 673,798,151,542.72
  5. Step 5: Solve for x
    x = 673,798,151,542.72/945,878.21
  6. Step 6: Final answer
    x = 712,351.92

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1.5x scale

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.