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Finding the Fourth Proportional to 1,049,760, 1,574,873.28 and 384,912

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Solution

The fourth proportional to 1,049,760, 1,574,873.28 and 384,912 is: 577,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,760 : 1,574,873.28 = 384,912 : x
  2. Step 2: Convert to fraction form
    1,049,760/1,574,873.28 = 384,912/x
  3. Step 3: Cross multiply
    1,049,760x = 1,574,873.28 × 384,912
  4. Step 4: Simplify right side
    1,049,760x = 606,187,623,951.36
  5. Step 5: Solve for x
    x = 606,187,623,951.36/1,049,760
  6. Step 6: Final answer
    x = 577,453.54

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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.