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Finding the Fourth Proportional to 360,390.34, 497,256.18 and 215,167.92

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Solution

The fourth proportional to 360,390.34, 497,256.18 and 215,167.92 is: 296,882.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,390.34 : 497,256.18 = 215,167.92 : x
  2. Step 2: Convert to fraction form
    360,390.34/497,256.18 = 215,167.92/x
  3. Step 3: Cross multiply
    360,390.34x = 497,256.18 × 215,167.92
  4. Step 4: Simplify right side
    360,390.34x = 106,993,576,009.38
  5. Step 5: Solve for x
    x = 106,993,576,009.38/360,390.34
  6. Step 6: Final answer
    x = 296,882.47

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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.