Home / 641,737.21-885,319.36-386,946.85

Finding the Fourth Proportional to 641,737.21, 885,319.36 and 386,946.85

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Solution

The fourth proportional to 641,737.21, 885,319.36 and 386,946.85 is: 533,819.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,737.21 : 885,319.36 = 386,946.85 : x
  2. Step 2: Convert to fraction form
    641,737.21/885,319.36 = 386,946.85/x
  3. Step 3: Cross multiply
    641,737.21x = 885,319.36 × 386,946.85
  4. Step 4: Simplify right side
    641,737.21x = 342,571,540,293.00
  5. Step 5: Solve for x
    x = 342,571,540,293.00/641,737.21
  6. Step 6: Final answer
    x = 533,819.04

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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.