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Finding the Fourth Proportional to 612,017.37, 844,567.11 and 340,078.30

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Solution

The fourth proportional to 612,017.37, 844,567.11 and 340,078.30 is: 469,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,017.37 : 844,567.11 = 340,078.30 : x
  2. Step 2: Convert to fraction form
    612,017.37/844,567.11 = 340,078.30/x
  3. Step 3: Cross multiply
    612,017.37x = 844,567.11 × 340,078.30
  4. Step 4: Simplify right side
    612,017.37x = 287,218,949,335.72
  5. Step 5: Solve for x
    x = 287,218,949,335.72/612,017.37
  6. Step 6: Final answer
    x = 469,298.69

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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.