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Finding the Fourth Proportional to 1,857,771.02, 2,563,733.09 and 1,042,018.30

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Solution

The fourth proportional to 1,857,771.02, 2,563,733.09 and 1,042,018.30 is: 1,437,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,771.02 : 2,563,733.09 = 1,042,018.30 : x
  2. Step 2: Convert to fraction form
    1,857,771.02/2,563,733.09 = 1,042,018.30/x
  3. Step 3: Cross multiply
    1,857,771.02x = 2,563,733.09 × 1,042,018.30
  4. Step 4: Simplify right side
    1,857,771.02x = 2,671,456,790,298.69
  5. Step 5: Solve for x
    x = 2,671,456,790,298.69/1,857,771.02
  6. Step 6: Final answer
    x = 1,437,990.35

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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.