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Finding the Fourth Proportional to 338,211.16, 507,394.49 and 101,558.32

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Solution

The fourth proportional to 338,211.16, 507,394.49 and 101,558.32 is: 152,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,211.16 : 507,394.49 = 101,558.32 : x
  2. Step 2: Convert to fraction form
    338,211.16/507,394.49 = 101,558.32/x
  3. Step 3: Cross multiply
    338,211.16x = 507,394.49 × 101,558.32
  4. Step 4: Simplify right side
    338,211.16x = 51,530,131,981.66
  5. Step 5: Solve for x
    x = 51,530,131,981.66/338,211.16
  6. Step 6: Final answer
    x = 152,360.83

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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.