Home / 1,108,484.03-1,529,745.75-643,302.10

Finding the Fourth Proportional to 1,108,484.03, 1,529,745.75 and 643,302.10

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Solution

The fourth proportional to 1,108,484.03, 1,529,745.75 and 643,302.10 is: 887,778.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,484.03 : 1,529,745.75 = 643,302.10 : x
  2. Step 2: Convert to fraction form
    1,108,484.03/1,529,745.75 = 643,302.10/x
  3. Step 3: Cross multiply
    1,108,484.03x = 1,529,745.75 × 643,302.10
  4. Step 4: Simplify right side
    1,108,484.03x = 984,088,655,353.26
  5. Step 5: Solve for x
    x = 984,088,655,353.26/1,108,484.03
  6. Step 6: Final answer
    x = 887,778.83

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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.