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Finding the Fourth Proportional to 1,942,669.92, 2,913,780.72 and 522,614.40

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Solution

The fourth proportional to 1,942,669.92, 2,913,780.72 and 522,614.40 is: 783,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,669.92 : 2,913,780.72 = 522,614.40 : x
  2. Step 2: Convert to fraction form
    1,942,669.92/2,913,780.72 = 522,614.40/x
  3. Step 3: Cross multiply
    1,942,669.92x = 2,913,780.72 × 522,614.40
  4. Step 4: Simplify right side
    1,942,669.92x = 1,522,783,762,714.37
  5. Step 5: Solve for x
    x = 1,522,783,762,714.37/1,942,669.92
  6. Step 6: Final answer
    x = 783,861.30

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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.