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Finding the Fourth Proportional to 395,604,604.40, 593,406,906.60 and 202,112,841.20

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Solution

The fourth proportional to 395,604,604.40, 593,406,906.60 and 202,112,841.20 is: 303,169,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,604,604.40 : 593,406,906.60 = 202,112,841.20 : x
  2. Step 2: Convert to fraction form
    395,604,604.40/593,406,906.60 = 202,112,841.20/x
  3. Step 3: Cross multiply
    395,604,604.40x = 593,406,906.60 × 202,112,841.20
  4. Step 4: Simplify right side
    395,604,604.40x = 119,935,155,880,629,024
  5. Step 5: Solve for x
    x = 119,935,155,880,629,024/395,604,604.40
  6. Step 6: Final answer
    x = 303,169,261.80

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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.