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Finding the Fourth Proportional to 742,522,877.28, 1,114,307,703 and 349,067,662.56

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Solution

The fourth proportional to 742,522,877.28, 1,114,307,703 and 349,067,662.56 is: 523,847,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,522,877.28 : 1,114,307,703 = 349,067,662.56 : x
  2. Step 2: Convert to fraction form
    742,522,877.28/1,114,307,703 = 349,067,662.56/x
  3. Step 3: Cross multiply
    742,522,877.28x = 1,114,307,703 × 349,067,662.56
  4. Step 4: Simplify right side
    742,522,877.28x = 388,968,785,258,812,672
  5. Step 5: Solve for x
    x = 388,968,785,258,812,672/742,522,877.28
  6. Step 6: Final answer
    x = 523,847,543.50

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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.