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Finding the Fourth Proportional to 620,615,461.80, 930,923,192.70 and 568,211,442.60

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Solution

The fourth proportional to 620,615,461.80, 930,923,192.70 and 568,211,442.60 is: 852,317,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,615,461.80 : 930,923,192.70 = 568,211,442.60 : x
  2. Step 2: Convert to fraction form
    620,615,461.80/930,923,192.70 = 568,211,442.60/x
  3. Step 3: Cross multiply
    620,615,461.80x = 930,923,192.70 × 568,211,442.60
  4. Step 4: Simplify right side
    620,615,461.80x = 528,961,210,273,864,832
  5. Step 5: Solve for x
    x = 528,961,210,273,864,832/620,615,461.80
  6. Step 6: Final answer
    x = 852,317,163.90

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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.