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Finding the Fourth Proportional to 862,247.40, 1,204,784.40 and 862,247.40

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Solution

The fourth proportional to 862,247.40, 1,204,784.40 and 862,247.40 is: 1,204,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,247.40 : 1,204,784.40 = 862,247.40 : x
  2. Step 2: Convert to fraction form
    862,247.40/1,204,784.40 = 862,247.40/x
  3. Step 3: Cross multiply
    862,247.40x = 1,204,784.40 × 862,247.40
  4. Step 4: Simplify right side
    862,247.40x = 1,038,822,216,460.56
  5. Step 5: Solve for x
    x = 1,038,822,216,460.56/862,247.40
  6. Step 6: Final answer
    x = 1,204,784.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.