Home / 1,186,669-1,637,611.14-642,804.82

Finding the Fourth Proportional to 1,186,669, 1,637,611.14 and 642,804.82

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Solution

The fourth proportional to 1,186,669, 1,637,611.14 and 642,804.82 is: 887,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,669 : 1,637,611.14 = 642,804.82 : x
  2. Step 2: Convert to fraction form
    1,186,669/1,637,611.14 = 642,804.82/x
  3. Step 3: Cross multiply
    1,186,669x = 1,637,611.14 × 642,804.82
  4. Step 4: Simplify right side
    1,186,669x = 1,052,664,334,077.69
  5. Step 5: Solve for x
    x = 1,052,664,334,077.69/1,186,669
  6. Step 6: Final answer
    x = 887,074.94

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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.