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Finding the Fourth Proportional to 353,798.40, 487,411.20 and 246,183.60

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Solution

The fourth proportional to 353,798.40, 487,411.20 and 246,183.60 is: 339,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,798.40 : 487,411.20 = 246,183.60 : x
  2. Step 2: Convert to fraction form
    353,798.40/487,411.20 = 246,183.60/x
  3. Step 3: Cross multiply
    353,798.40x = 487,411.20 × 246,183.60
  4. Step 4: Simplify right side
    353,798.40x = 119,992,643,896.32
  5. Step 5: Solve for x
    x = 119,992,643,896.32/353,798.40
  6. Step 6: Final answer
    x = 339,155.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.