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Finding the Fourth Proportional to 1,891,764.88, 2,610,690.67 and 1,032,380.50

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Solution

The fourth proportional to 1,891,764.88, 2,610,690.67 and 1,032,380.50 is: 1,424,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,764.88 : 2,610,690.67 = 1,032,380.50 : x
  2. Step 2: Convert to fraction form
    1,891,764.88/2,610,690.67 = 1,032,380.50/x
  3. Step 3: Cross multiply
    1,891,764.88x = 2,610,690.67 × 1,032,380.50
  4. Step 4: Simplify right side
    1,891,764.88x = 2,695,226,126,186.48
  5. Step 5: Solve for x
    x = 2,695,226,126,186.48/1,891,764.88
  6. Step 6: Final answer
    x = 1,424,715.17

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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.