Home / 616,583.10-923,999.85-455,401.20

Finding the Fourth Proportional to 616,583.10, 923,999.85 and 455,401.20

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Solution

The fourth proportional to 616,583.10, 923,999.85 and 455,401.20 is: 682,455.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,583.10 : 923,999.85 = 455,401.20 : x
  2. Step 2: Convert to fraction form
    616,583.10/923,999.85 = 455,401.20/x
  3. Step 3: Cross multiply
    616,583.10x = 923,999.85 × 455,401.20
  4. Step 4: Simplify right side
    616,583.10x = 420,790,640,489.82
  5. Step 5: Solve for x
    x = 420,790,640,489.82/616,583.10
  6. Step 6: Final answer
    x = 682,455.68

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1.5x scale

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.