Home / 1,205,201.46-1,663,173.40-661,346.34

Finding the Fourth Proportional to 1,205,201.46, 1,663,173.40 and 661,346.34

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Solution

The fourth proportional to 1,205,201.46, 1,663,173.40 and 661,346.34 is: 912,655.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,201.46 : 1,663,173.40 = 661,346.34 : x
  2. Step 2: Convert to fraction form
    1,205,201.46/1,663,173.40 = 661,346.34/x
  3. Step 3: Cross multiply
    1,205,201.46x = 1,663,173.40 × 661,346.34
  4. Step 4: Simplify right side
    1,205,201.46x = 1,099,933,640,875.36
  5. Step 5: Solve for x
    x = 1,099,933,640,875.36/1,205,201.46
  6. Step 6: Final answer
    x = 912,655.42

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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.