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Finding the Fourth Proportional to 518,984.56, 716,198.82 and 292,630.12

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Solution

The fourth proportional to 518,984.56, 716,198.82 and 292,630.12 is: 403,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,984.56 : 716,198.82 = 292,630.12 : x
  2. Step 2: Convert to fraction form
    518,984.56/716,198.82 = 292,630.12/x
  3. Step 3: Cross multiply
    518,984.56x = 716,198.82 × 292,630.12
  4. Step 4: Simplify right side
    518,984.56x = 209,581,346,640.46
  5. Step 5: Solve for x
    x = 209,581,346,640.46/518,984.56
  6. Step 6: Final answer
    x = 403,829.64

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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.