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Finding the Fourth Proportional to 419,026.40, 627,848.40 and 356,818.40

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Solution

The fourth proportional to 419,026.40, 627,848.40 and 356,818.40 is: 534,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,026.40 : 627,848.40 = 356,818.40 : x
  2. Step 2: Convert to fraction form
    419,026.40/627,848.40 = 356,818.40/x
  3. Step 3: Cross multiply
    419,026.40x = 627,848.40 × 356,818.40
  4. Step 4: Simplify right side
    419,026.40x = 224,027,861,530.56
  5. Step 5: Solve for x
    x = 224,027,861,530.56/419,026.40
  6. Step 6: Final answer
    x = 534,639.01

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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.