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Finding the Fourth Proportional to 518,563.13, 715,617.11 and 292,216.73

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Solution

The fourth proportional to 518,563.13, 715,617.11 and 292,216.73 is: 403,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,563.13 : 715,617.11 = 292,216.73 : x
  2. Step 2: Convert to fraction form
    518,563.13/715,617.11 = 292,216.73/x
  3. Step 3: Cross multiply
    518,563.13x = 715,617.11 × 292,216.73
  4. Step 4: Simplify right side
    518,563.13x = 209,115,288,968.71
  5. Step 5: Solve for x
    x = 209,115,288,968.71/518,563.13
  6. Step 6: Final answer
    x = 403,259.08

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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.