Home / 1,182,387.66-1,631,602.08-666,118.77

Finding the Fourth Proportional to 1,182,387.66, 1,631,602.08 and 666,118.77

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Solution

The fourth proportional to 1,182,387.66, 1,631,602.08 and 666,118.77 is: 919,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,387.66 : 1,631,602.08 = 666,118.77 : x
  2. Step 2: Convert to fraction form
    1,182,387.66/1,631,602.08 = 666,118.77/x
  3. Step 3: Cross multiply
    1,182,387.66x = 1,631,602.08 × 666,118.77
  4. Step 4: Simplify right side
    1,182,387.66x = 1,086,840,770,659.04
  5. Step 5: Solve for x
    x = 1,086,840,770,659.04/1,182,387.66
  6. Step 6: Final answer
    x = 919,191.57

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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.