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Finding the Fourth Proportional to 662,488,762.60, 993,780,383.10 and 202,426,193.80

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Solution

The fourth proportional to 662,488,762.60, 993,780,383.10 and 202,426,193.80 is: 303,653,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,488,762.60 : 993,780,383.10 = 202,426,193.80 : x
  2. Step 2: Convert to fraction form
    662,488,762.60/993,780,383.10 = 202,426,193.80/x
  3. Step 3: Cross multiply
    662,488,762.60x = 993,780,383.10 × 202,426,193.80
  4. Step 4: Simplify right side
    662,488,762.60x = 201,167,180,424,038,848
  5. Step 5: Solve for x
    x = 201,167,180,424,038,848/662,488,762.60
  6. Step 6: Final answer
    x = 303,653,724.83

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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.