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Finding the Fourth Proportional to 1,296,404.90, 1,941,108.15 and 1,016,468.90

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Solution

The fourth proportional to 1,296,404.90, 1,941,108.15 and 1,016,468.90 is: 1,521,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,404.90 : 1,941,108.15 = 1,016,468.90 : x
  2. Step 2: Convert to fraction form
    1,296,404.90/1,941,108.15 = 1,016,468.90/x
  3. Step 3: Cross multiply
    1,296,404.90x = 1,941,108.15 × 1,016,468.90
  4. Step 4: Simplify right side
    1,296,404.90x = 1,973,076,066,011.54
  5. Step 5: Solve for x
    x = 1,973,076,066,011.54/1,296,404.90
  6. Step 6: Final answer
    x = 1,521,959.74

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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.