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Finding the Fourth Proportional to 425,848.20, 638,772.30 and 362,522.40

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Solution

The fourth proportional to 425,848.20, 638,772.30 and 362,522.40 is: 543,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,848.20 : 638,772.30 = 362,522.40 : x
  2. Step 2: Convert to fraction form
    425,848.20/638,772.30 = 362,522.40/x
  3. Step 3: Cross multiply
    425,848.20x = 638,772.30 × 362,522.40
  4. Step 4: Simplify right side
    425,848.20x = 231,569,267,249.52
  5. Step 5: Solve for x
    x = 231,569,267,249.52/425,848.20
  6. Step 6: Final answer
    x = 543,783.60

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Similar ratio
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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.