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Finding the Fourth Proportional to 2,970,326, 4,455,576.48 and 726,464

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Solution

The fourth proportional to 2,970,326, 4,455,576.48 and 726,464 is: 1,089,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970,326 : 4,455,576.48 = 726,464 : x
  2. Step 2: Convert to fraction form
    2,970,326/4,455,576.48 = 726,464/x
  3. Step 3: Cross multiply
    2,970,326x = 4,455,576.48 × 726,464
  4. Step 4: Simplify right side
    2,970,326x = 3,236,815,911,966.72
  5. Step 5: Solve for x
    x = 3,236,815,911,966.72/2,970,326
  6. Step 6: Final answer
    x = 1,089,717.40

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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.