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Finding the Fourth Proportional to 338,313.09, 507,513.42 and 101,679.69

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Solution

The fourth proportional to 338,313.09, 507,513.42 and 101,679.69 is: 152,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,313.09 : 507,513.42 = 101,679.69 : x
  2. Step 2: Convert to fraction form
    338,313.09/507,513.42 = 101,679.69/x
  3. Step 3: Cross multiply
    338,313.09x = 507,513.42 × 101,679.69
  4. Step 4: Simplify right side
    338,313.09x = 51,603,807,216.44
  5. Step 5: Solve for x
    x = 51,603,807,216.44/338,313.09
  6. Step 6: Final answer
    x = 152,532.69

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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.