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Finding the Fourth Proportional to 1,641,376, 2,462,383.20 and 630,424

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Solution

The fourth proportional to 1,641,376, 2,462,383.20 and 630,424 is: 945,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641,376 : 2,462,383.20 = 630,424 : x
  2. Step 2: Convert to fraction form
    1,641,376/2,462,383.20 = 630,424/x
  3. Step 3: Cross multiply
    1,641,376x = 2,462,383.20 × 630,424
  4. Step 4: Simplify right side
    1,641,376x = 1,552,345,466,476.80
  5. Step 5: Solve for x
    x = 1,552,345,466,476.80/1,641,376
  6. Step 6: Final answer
    x = 945,758.60

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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.