Home / 683,856.60-1,025,784.90-644,490.60

Finding the Fourth Proportional to 683,856.60, 1,025,784.90 and 644,490.60

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Solution

The fourth proportional to 683,856.60, 1,025,784.90 and 644,490.60 is: 966,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,856.60 : 1,025,784.90 = 644,490.60 : x
  2. Step 2: Convert to fraction form
    683,856.60/1,025,784.90 = 644,490.60/x
  3. Step 3: Cross multiply
    683,856.60x = 1,025,784.90 × 644,490.60
  4. Step 4: Simplify right side
    683,856.60x = 661,108,725,671.94
  5. Step 5: Solve for x
    x = 661,108,725,671.94/683,856.60
  6. Step 6: Final answer
    x = 966,735.90

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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.