Home / 1,289,259.92-1,933,901.40-530,921.36

Finding the Fourth Proportional to 1,289,259.92, 1,933,901.40 and 530,921.36

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Solution

The fourth proportional to 1,289,259.92, 1,933,901.40 and 530,921.36 is: 796,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,259.92 : 1,933,901.40 = 530,921.36 : x
  2. Step 2: Convert to fraction form
    1,289,259.92/1,933,901.40 = 530,921.36/x
  3. Step 3: Cross multiply
    1,289,259.92x = 1,933,901.40 × 530,921.36
  4. Step 4: Simplify right side
    1,289,259.92x = 1,026,749,561,393.90
  5. Step 5: Solve for x
    x = 1,026,749,561,393.90/1,289,259.92
  6. Step 6: Final answer
    x = 796,386.78

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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.