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Finding the Fourth Proportional to 338,503.10, 507,608.85 and 169,958.30

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Solution

The fourth proportional to 338,503.10, 507,608.85 and 169,958.30 is: 254,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,503.10 : 507,608.85 = 169,958.30 : x
  2. Step 2: Convert to fraction form
    338,503.10/507,608.85 = 169,958.30/x
  3. Step 3: Cross multiply
    338,503.10x = 507,608.85 × 169,958.30
  4. Step 4: Simplify right side
    338,503.10x = 86,272,337,210.96
  5. Step 5: Solve for x
    x = 86,272,337,210.96/338,503.10
  6. Step 6: Final answer
    x = 254,864.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.