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Finding the Fourth Proportional to 354,237.01, 531,472.17 and 143,818.45

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Solution

The fourth proportional to 354,237.01, 531,472.17 and 143,818.45 is: 215,775.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,237.01 : 531,472.17 = 143,818.45 : x
  2. Step 2: Convert to fraction form
    354,237.01/531,472.17 = 143,818.45/x
  3. Step 3: Cross multiply
    354,237.01x = 531,472.17 × 143,818.45
  4. Step 4: Simplify right side
    354,237.01x = 76,435,503,707.54
  5. Step 5: Solve for x
    x = 76,435,503,707.54/354,237.01
  6. Step 6: Final answer
    x = 215,775.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.