Home / 640,965,778.80-961,448,668.20-597,967,609.20

Finding the Fourth Proportional to 640,965,778.80, 961,448,668.20 and 597,967,609.20

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Solution

The fourth proportional to 640,965,778.80, 961,448,668.20 and 597,967,609.20 is: 896,951,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,965,778.80 : 961,448,668.20 = 597,967,609.20 : x
  2. Step 2: Convert to fraction form
    640,965,778.80/961,448,668.20 = 597,967,609.20/x
  3. Step 3: Cross multiply
    640,965,778.80x = 961,448,668.20 × 597,967,609.20
  4. Step 4: Simplify right side
    640,965,778.80x = 574,915,161,492,078,144
  5. Step 5: Solve for x
    x = 574,915,161,492,078,144/640,965,778.80
  6. Step 6: Final answer
    x = 896,951,413.80

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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.