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Finding the Fourth Proportional to 1,056,899.40, 1,458,899.40 and 627,179.41

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Solution

The fourth proportional to 1,056,899.40, 1,458,899.40 and 627,179.41 is: 865,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,899.40 : 1,458,899.40 = 627,179.41 : x
  2. Step 2: Convert to fraction form
    1,056,899.40/1,458,899.40 = 627,179.41/x
  3. Step 3: Cross multiply
    1,056,899.40x = 1,458,899.40 × 627,179.41
  4. Step 4: Simplify right side
    1,056,899.40x = 914,991,664,941.35
  5. Step 5: Solve for x
    x = 914,991,664,941.35/1,056,899.40
  6. Step 6: Final answer
    x = 865,732.03

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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.