Home / 1,209,852.37-1,669,538.95-665,976.93

Finding the Fourth Proportional to 1,209,852.37, 1,669,538.95 and 665,976.93

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Solution

The fourth proportional to 1,209,852.37, 1,669,538.95 and 665,976.93 is: 919,016.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,852.37 : 1,669,538.95 = 665,976.93 : x
  2. Step 2: Convert to fraction form
    1,209,852.37/1,669,538.95 = 665,976.93/x
  3. Step 3: Cross multiply
    1,209,852.37x = 1,669,538.95 × 665,976.93
  4. Step 4: Simplify right side
    1,209,852.37x = 1,111,874,424,436.42
  5. Step 5: Solve for x
    x = 1,111,874,424,436.42/1,209,852.37
  6. Step 6: Final answer
    x = 919,016.61

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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.