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Finding the Fourth Proportional to 1,941,662.61, 2,679,385.14 and 1,070,468.42

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Solution

The fourth proportional to 1,941,662.61, 2,679,385.14 and 1,070,468.42 is: 1,477,186.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,662.61 : 2,679,385.14 = 1,070,468.42 : x
  2. Step 2: Convert to fraction form
    1,941,662.61/2,679,385.14 = 1,070,468.42/x
  3. Step 3: Cross multiply
    1,941,662.61x = 2,679,385.14 × 1,070,468.42
  4. Step 4: Simplify right side
    1,941,662.61x = 2,868,197,163,990.35
  5. Step 5: Solve for x
    x = 2,868,197,163,990.35/1,941,662.61
  6. Step 6: Final answer
    x = 1,477,186.17

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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.