Home / 1,185,320.18-1,635,745.93-641,455.81

Finding the Fourth Proportional to 1,185,320.18, 1,635,745.93 and 641,455.81

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Solution

The fourth proportional to 1,185,320.18, 1,635,745.93 and 641,455.81 is: 885,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,320.18 : 1,635,745.93 = 641,455.81 : x
  2. Step 2: Convert to fraction form
    1,185,320.18/1,635,745.93 = 641,455.81/x
  3. Step 3: Cross multiply
    1,185,320.18x = 1,635,745.93 × 641,455.81
  4. Step 4: Simplify right side
    1,185,320.18x = 1,049,258,724,789.35
  5. Step 5: Solve for x
    x = 1,049,258,724,789.35/1,185,320.18
  6. Step 6: Final answer
    x = 885,211.22

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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.