Home / 563,913.45-778,128.58-322,211.67

Finding the Fourth Proportional to 563,913.45, 778,128.58 and 322,211.67

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Solution

The fourth proportional to 563,913.45, 778,128.58 and 322,211.67 is: 444,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,913.45 : 778,128.58 = 322,211.67 : x
  2. Step 2: Convert to fraction form
    563,913.45/778,128.58 = 322,211.67/x
  3. Step 3: Cross multiply
    563,913.45x = 778,128.58 × 322,211.67
  4. Step 4: Simplify right side
    563,913.45x = 250,722,108,431.00
  5. Step 5: Solve for x
    x = 250,722,108,431.00/563,913.45
  6. Step 6: Final answer
    x = 444,610.97

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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.