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Finding the Fourth Proportional to 4,932,645.94, 7,399,706.91 and 1,520,648.74

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Solution

The fourth proportional to 4,932,645.94, 7,399,706.91 and 1,520,648.74 is: 2,281,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932,645.94 : 7,399,706.91 = 1,520,648.74 : x
  2. Step 2: Convert to fraction form
    4,932,645.94/7,399,706.91 = 1,520,648.74/x
  3. Step 3: Cross multiply
    4,932,645.94x = 7,399,706.91 × 1,520,648.74
  4. Step 4: Simplify right side
    4,932,645.94x = 11,252,354,989,060.79
  5. Step 5: Solve for x
    x = 11,252,354,989,060.79/4,932,645.94
  6. Step 6: Final answer
    x = 2,281,200.62

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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.