Home / 1,166,580.30-1,609,976.63-643,393.25

Finding the Fourth Proportional to 1,166,580.30, 1,609,976.63 and 643,393.25

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Solution

The fourth proportional to 1,166,580.30, 1,609,976.63 and 643,393.25 is: 887,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,580.30 : 1,609,976.63 = 643,393.25 : x
  2. Step 2: Convert to fraction form
    1,166,580.30/1,609,976.63 = 643,393.25/x
  3. Step 3: Cross multiply
    1,166,580.30x = 1,609,976.63 × 643,393.25
  4. Step 4: Simplify right side
    1,166,580.30x = 1,035,848,095,995.76
  5. Step 5: Solve for x
    x = 1,035,848,095,995.76/1,166,580.30
  6. Step 6: Final answer
    x = 887,935.53

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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.