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Finding the Fourth Proportional to 452,872.22, 624,305 and 316,482.72

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Solution

The fourth proportional to 452,872.22, 624,305 and 316,482.72 is: 436,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,872.22 : 624,305 = 316,482.72 : x
  2. Step 2: Convert to fraction form
    452,872.22/624,305 = 316,482.72/x
  3. Step 3: Cross multiply
    452,872.22x = 624,305 × 316,482.72
  4. Step 4: Simplify right side
    452,872.22x = 197,581,744,509.60
  5. Step 5: Solve for x
    x = 197,581,744,509.60/452,872.22
  6. Step 6: Final answer
    x = 436,285.86

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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.