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Finding the Fourth Proportional to 472,161.29, 651,581.58 and 257,300.84

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Solution

The fourth proportional to 472,161.29, 651,581.58 and 257,300.84 is: 355,074.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,161.29 : 651,581.58 = 257,300.84 : x
  2. Step 2: Convert to fraction form
    472,161.29/651,581.58 = 257,300.84/x
  3. Step 3: Cross multiply
    472,161.29x = 651,581.58 × 257,300.84
  4. Step 4: Simplify right side
    472,161.29x = 167,652,484,604.62
  5. Step 5: Solve for x
    x = 167,652,484,604.62/472,161.29
  6. Step 6: Final answer
    x = 355,074.61

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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.