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Finding the Fourth Proportional to 1,234,989.92, 1,849,495.04 and 854,845.52

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Solution

The fourth proportional to 1,234,989.92, 1,849,495.04 and 854,845.52 is: 1,280,198.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,989.92 : 1,849,495.04 = 854,845.52 : x
  2. Step 2: Convert to fraction form
    1,234,989.92/1,849,495.04 = 854,845.52/x
  3. Step 3: Cross multiply
    1,234,989.92x = 1,849,495.04 × 854,845.52
  4. Step 4: Simplify right side
    1,234,989.92x = 1,581,032,549,206.22
  5. Step 5: Solve for x
    x = 1,581,032,549,206.22/1,234,989.92
  6. Step 6: Final answer
    x = 1,280,198.75

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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.