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Finding the Fourth Proportional to 418,162.17, 577,302.53 and 275,336.85

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Solution

The fourth proportional to 418,162.17, 577,302.53 and 275,336.85 is: 380,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,162.17 : 577,302.53 = 275,336.85 : x
  2. Step 2: Convert to fraction form
    418,162.17/577,302.53 = 275,336.85/x
  3. Step 3: Cross multiply
    418,162.17x = 577,302.53 × 275,336.85
  4. Step 4: Simplify right side
    418,162.17x = 158,952,658,730.55
  5. Step 5: Solve for x
    x = 158,952,658,730.55/418,162.17
  6. Step 6: Final answer
    x = 380,122.04

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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.