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Finding the Fourth Proportional to 2,579,583.58, 3,869,384.37 and 782,482.54

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Solution

The fourth proportional to 2,579,583.58, 3,869,384.37 and 782,482.54 is: 1,173,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,583.58 : 3,869,384.37 = 782,482.54 : x
  2. Step 2: Convert to fraction form
    2,579,583.58/3,869,384.37 = 782,482.54/x
  3. Step 3: Cross multiply
    2,579,583.58x = 3,869,384.37 × 782,482.54
  4. Step 4: Simplify right side
    2,579,583.58x = 3,027,725,710,073.90
  5. Step 5: Solve for x
    x = 3,027,725,710,073.90/2,579,583.58
  6. Step 6: Final answer
    x = 1,173,726.54

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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.