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Finding the Fourth Proportional to 1,227,178.11, 1,840,893.11 and 469,656.80

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Solution

The fourth proportional to 1,227,178.11, 1,840,893.11 and 469,656.80 is: 704,533.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,178.11 : 1,840,893.11 = 469,656.80 : x
  2. Step 2: Convert to fraction form
    1,227,178.11/1,840,893.11 = 469,656.80/x
  3. Step 3: Cross multiply
    1,227,178.11x = 1,840,893.11 × 469,656.80
  4. Step 4: Simplify right side
    1,227,178.11x = 864,587,955,631.90
  5. Step 5: Solve for x
    x = 864,587,955,631.90/1,227,178.11
  6. Step 6: Final answer
    x = 704,533.39

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1.5x scale

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.