Home / 1,205,248.40-1,663,238.16-661,393.28

Finding the Fourth Proportional to 1,205,248.40, 1,663,238.16 and 661,393.28

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Solution

The fourth proportional to 1,205,248.40, 1,663,238.16 and 661,393.28 is: 912,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,248.40 : 1,663,238.16 = 661,393.28 : x
  2. Step 2: Convert to fraction form
    1,205,248.40/1,663,238.16 = 661,393.28/x
  3. Step 3: Cross multiply
    1,205,248.40x = 1,663,238.16 × 661,393.28
  4. Step 4: Simplify right side
    1,205,248.40x = 1,100,054,542,063.56
  5. Step 5: Solve for x
    x = 1,100,054,542,063.56/1,205,248.40
  6. Step 6: Final answer
    x = 912,720.18

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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.