Home / 1,210,327.67-1,670,186.03-666,360.15

Finding the Fourth Proportional to 1,210,327.67, 1,670,186.03 and 666,360.15

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Solution

The fourth proportional to 1,210,327.67, 1,670,186.03 and 666,360.15 is: 919,540.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,327.67 : 1,670,186.03 = 666,360.15 : x
  2. Step 2: Convert to fraction form
    1,210,327.67/1,670,186.03 = 666,360.15/x
  3. Step 3: Cross multiply
    1,210,327.67x = 1,670,186.03 × 666,360.15
  4. Step 4: Simplify right side
    1,210,327.67x = 1,112,945,410,146.90
  5. Step 5: Solve for x
    x = 1,112,945,410,146.90/1,210,327.67
  6. Step 6: Final answer
    x = 919,540.59

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1.5x scale

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.