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Finding the Fourth Proportional to 3,161,655.27, 4,742,978.67 and 1,031,247.54

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Solution

The fourth proportional to 3,161,655.27, 4,742,978.67 and 1,031,247.54 is: 1,547,033.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161,655.27 : 4,742,978.67 = 1,031,247.54 : x
  2. Step 2: Convert to fraction form
    3,161,655.27/4,742,978.67 = 1,031,247.54/x
  3. Step 3: Cross multiply
    3,161,655.27x = 4,742,978.67 × 1,031,247.54
  4. Step 4: Simplify right side
    3,161,655.27x = 4,891,185,085,709.97
  5. Step 5: Solve for x
    x = 4,891,185,085,709.97/3,161,655.27
  6. Step 6: Final answer
    x = 1,547,033.02

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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.