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Finding the Fourth Proportional to 354,369,609.40, 531,554,414.10 and 354,369,609.40

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Solution

The fourth proportional to 354,369,609.40, 531,554,414.10 and 354,369,609.40 is: 531,554,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,369,609.40 : 531,554,414.10 = 354,369,609.40 : x
  2. Step 2: Convert to fraction form
    354,369,609.40/531,554,414.10 = 354,369,609.40/x
  3. Step 3: Cross multiply
    354,369,609.40x = 531,554,414.10 × 354,369,609.40
  4. Step 4: Simplify right side
    354,369,609.40x = 188,366,730,099,462,848
  5. Step 5: Solve for x
    x = 188,366,730,099,462,848/354,369,609.40
  6. Step 6: Final answer
    x = 531,554,414.10

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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.