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Finding the Fourth Proportional to 632,807,718.60, 949,211,577.90 and 628,776,640.20

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Solution

The fourth proportional to 632,807,718.60, 949,211,577.90 and 628,776,640.20 is: 943,164,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,807,718.60 : 949,211,577.90 = 628,776,640.20 : x
  2. Step 2: Convert to fraction form
    632,807,718.60/949,211,577.90 = 628,776,640.20/x
  3. Step 3: Cross multiply
    632,807,718.60x = 949,211,577.90 × 628,776,640.20
  4. Step 4: Simplify right side
    632,807,718.60x = 596,842,066,790,902,656
  5. Step 5: Solve for x
    x = 596,842,066,790,902,656/632,807,718.60
  6. Step 6: Final answer
    x = 943,164,960.30

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Similar ratio
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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.