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Finding the Fourth Proportional to 301,155.90, 415,593.97 and 186,411.67

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Solution

The fourth proportional to 301,155.90, 415,593.97 and 186,411.67 is: 257,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,155.90 : 415,593.97 = 186,411.67 : x
  2. Step 2: Convert to fraction form
    301,155.90/415,593.97 = 186,411.67/x
  3. Step 3: Cross multiply
    301,155.90x = 415,593.97 × 186,411.67
  4. Step 4: Simplify right side
    301,155.90x = 77,471,565,989.63
  5. Step 5: Solve for x
    x = 77,471,565,989.63/301,155.90
  6. Step 6: Final answer
    x = 257,247.38

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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.