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Finding the Fourth Proportional to 1,607,518, 2,218,374.84 and 892,126

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Solution

The fourth proportional to 1,607,518, 2,218,374.84 and 892,126 is: 1,231,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607,518 : 2,218,374.84 = 892,126 : x
  2. Step 2: Convert to fraction form
    1,607,518/2,218,374.84 = 892,126/x
  3. Step 3: Cross multiply
    1,607,518x = 2,218,374.84 × 892,126
  4. Step 4: Simplify right side
    1,607,518x = 1,979,069,872,509.84
  5. Step 5: Solve for x
    x = 1,979,069,872,509.84/1,607,518
  6. Step 6: Final answer
    x = 1,231,133.88

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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.