Home / 1,233,343.78-1,702,027.02-689,509.78

Finding the Fourth Proportional to 1,233,343.78, 1,702,027.02 and 689,509.78

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Solution

The fourth proportional to 1,233,343.78, 1,702,027.02 and 689,509.78 is: 951,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233,343.78 : 1,702,027.02 = 689,509.78 : x
  2. Step 2: Convert to fraction form
    1,233,343.78/1,702,027.02 = 689,509.78/x
  3. Step 3: Cross multiply
    1,233,343.78x = 1,702,027.02 × 689,509.78
  4. Step 4: Simplify right side
    1,233,343.78x = 1,173,564,276,114.26
  5. Step 5: Solve for x
    x = 1,173,564,276,114.26/1,233,343.78
  6. Step 6: Final answer
    x = 951,530.54

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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.