Home / 1,372,289.06-1,893,858.64-828,557.12

Finding the Fourth Proportional to 1,372,289.06, 1,893,858.64 and 828,557.12

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Solution

The fourth proportional to 1,372,289.06, 1,893,858.64 and 828,557.12 is: 1,143,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,289.06 : 1,893,858.64 = 828,557.12 : x
  2. Step 2: Convert to fraction form
    1,372,289.06/1,893,858.64 = 828,557.12/x
  3. Step 3: Cross multiply
    1,372,289.06x = 1,893,858.64 × 828,557.12
  4. Step 4: Simplify right side
    1,372,289.06x = 1,569,170,060,445.52
  5. Step 5: Solve for x
    x = 1,569,170,060,445.52/1,372,289.06
  6. Step 6: Final answer
    x = 1,143,469.04

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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.