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Finding the Fourth Proportional to 1,213,524, 1,674,663.84 and 676,980

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Solution

The fourth proportional to 1,213,524, 1,674,663.84 and 676,980 is: 934,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,524 : 1,674,663.84 = 676,980 : x
  2. Step 2: Convert to fraction form
    1,213,524/1,674,663.84 = 676,980/x
  3. Step 3: Cross multiply
    1,213,524x = 1,674,663.84 × 676,980
  4. Step 4: Simplify right side
    1,213,524x = 1,133,713,926,403.20
  5. Step 5: Solve for x
    x = 1,133,713,926,403.20/1,213,524
  6. Step 6: Final answer
    x = 934,232.80

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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.