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Finding the Fourth Proportional to 646,651.72, 968,321.41 and 539,769.95

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Solution

The fourth proportional to 646,651.72, 968,321.41 and 539,769.95 is: 808,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,651.72 : 968,321.41 = 539,769.95 : x
  2. Step 2: Convert to fraction form
    646,651.72/968,321.41 = 539,769.95/x
  3. Step 3: Cross multiply
    646,651.72x = 968,321.41 × 539,769.95
  4. Step 4: Simplify right side
    646,651.72x = 522,670,792,868.60
  5. Step 5: Solve for x
    x = 522,670,792,868.60/646,651.72
  6. Step 6: Final answer
    x = 808,272.49

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Double scale
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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.