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Finding the Fourth Proportional to 369,906.20, 516,687.70 and 369,906.20

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Solution

The fourth proportional to 369,906.20, 516,687.70 and 369,906.20 is: 516,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,906.20 : 516,687.70 = 369,906.20 : x
  2. Step 2: Convert to fraction form
    369,906.20/516,687.70 = 369,906.20/x
  3. Step 3: Cross multiply
    369,906.20x = 516,687.70 × 369,906.20
  4. Step 4: Simplify right side
    369,906.20x = 191,125,983,693.74
  5. Step 5: Solve for x
    x = 191,125,983,693.74/369,906.20
  6. Step 6: Final answer
    x = 516,687.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.