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Finding the Fourth Proportional to 862,953,846.56, 1,294,289,052.16 and 371,534,815.20

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Solution

The fourth proportional to 862,953,846.56, 1,294,289,052.16 and 371,534,815.20 is: 557,241,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,953,846.56 : 1,294,289,052.16 = 371,534,815.20 : x
  2. Step 2: Convert to fraction form
    862,953,846.56/1,294,289,052.16 = 371,534,815.20/x
  3. Step 3: Cross multiply
    862,953,846.56x = 1,294,289,052.16 × 371,534,815.20
  4. Step 4: Simplify right side
    862,953,846.56x = 480,873,443,809,648,768
  5. Step 5: Solve for x
    x = 480,873,443,809,648,768/862,953,846.56
  6. Step 6: Final answer
    x = 557,241,207.89

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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.