Home / 1,685,919.50-2,529,875.70-621,708.90

Finding the Fourth Proportional to 1,685,919.50, 2,529,875.70 and 621,708.90

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Solution

The fourth proportional to 1,685,919.50, 2,529,875.70 and 621,708.90 is: 932,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,919.50 : 2,529,875.70 = 621,708.90 : x
  2. Step 2: Convert to fraction form
    1,685,919.50/2,529,875.70 = 621,708.90/x
  3. Step 3: Cross multiply
    1,685,919.50x = 2,529,875.70 × 621,708.90
  4. Step 4: Simplify right side
    1,685,919.50x = 1,572,846,238,583.73
  5. Step 5: Solve for x
    x = 1,572,846,238,583.73/1,685,919.50
  6. Step 6: Final answer
    x = 932,930.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.