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Finding the Fourth Proportional to 677,471.08, 934,842.72 and 391,083.44

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Solution

The fourth proportional to 677,471.08, 934,842.72 and 391,083.44 is: 539,656.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,471.08 : 934,842.72 = 391,083.44 : x
  2. Step 2: Convert to fraction form
    677,471.08/934,842.72 = 391,083.44/x
  3. Step 3: Cross multiply
    677,471.08x = 934,842.72 × 391,083.44
  4. Step 4: Simplify right side
    677,471.08x = 365,601,506,796.56
  5. Step 5: Solve for x
    x = 365,601,506,796.56/677,471.08
  6. Step 6: Final answer
    x = 539,656.26

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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.