Home / 1,205,042.57-1,662,958.56-688,807.55

Finding the Fourth Proportional to 1,205,042.57, 1,662,958.56 and 688,807.55

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Solution

The fourth proportional to 1,205,042.57, 1,662,958.56 and 688,807.55 is: 950,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,042.57 : 1,662,958.56 = 688,807.55 : x
  2. Step 2: Convert to fraction form
    1,205,042.57/1,662,958.56 = 688,807.55/x
  3. Step 3: Cross multiply
    1,205,042.57x = 1,662,958.56 × 688,807.55
  4. Step 4: Simplify right side
    1,205,042.57x = 1,145,458,407,360.63
  5. Step 5: Solve for x
    x = 1,145,458,407,360.63/1,205,042.57
  6. Step 6: Final answer
    x = 950,554.31

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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.