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Finding the Fourth Proportional to 518,987.56, 716,202.96 and 292,633.12

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Solution

The fourth proportional to 518,987.56, 716,202.96 and 292,633.12 is: 403,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,987.56 : 716,202.96 = 292,633.12 : x
  2. Step 2: Convert to fraction form
    518,987.56/716,202.96 = 292,633.12/x
  3. Step 3: Cross multiply
    518,987.56x = 716,202.96 × 292,633.12
  4. Step 4: Simplify right side
    518,987.56x = 209,584,706,738.04
  5. Step 5: Solve for x
    x = 209,584,706,738.04/518,987.56
  6. Step 6: Final answer
    x = 403,833.78

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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.