Home / 651,640.32-899,251.20-424,857.60

Finding the Fourth Proportional to 651,640.32, 899,251.20 and 424,857.60

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Solution

The fourth proportional to 651,640.32, 899,251.20 and 424,857.60 is: 586,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,640.32 : 899,251.20 = 424,857.60 : x
  2. Step 2: Convert to fraction form
    651,640.32/899,251.20 = 424,857.60/x
  3. Step 3: Cross multiply
    651,640.32x = 899,251.20 × 424,857.60
  4. Step 4: Simplify right side
    651,640.32x = 382,053,706,629.12
  5. Step 5: Solve for x
    x = 382,053,706,629.12/651,640.32
  6. Step 6: Final answer
    x = 586,295.38

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1.5x scale

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.