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Finding the Fourth Proportional to 360,390.47, 497,256.36 and 215,168.04

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Solution

The fourth proportional to 360,390.47, 497,256.36 and 215,168.04 is: 296,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,390.47 : 497,256.36 = 215,168.04 : x
  2. Step 2: Convert to fraction form
    360,390.47/497,256.36 = 215,168.04/x
  3. Step 3: Cross multiply
    360,390.47x = 497,256.36 × 215,168.04
  4. Step 4: Simplify right side
    360,390.47x = 106,993,675,551.85
  5. Step 5: Solve for x
    x = 106,993,675,551.85/360,390.47
  6. Step 6: Final answer
    x = 296,882.65

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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.