Home / 1,210,189.56-1,670,101.38-666,365.28

Finding the Fourth Proportional to 1,210,189.56, 1,670,101.38 and 666,365.28

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Solution

The fourth proportional to 1,210,189.56, 1,670,101.38 and 666,365.28 is: 919,605.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,189.56 : 1,670,101.38 = 666,365.28 : x
  2. Step 2: Convert to fraction form
    1,210,189.56/1,670,101.38 = 666,365.28/x
  3. Step 3: Cross multiply
    1,210,189.56x = 1,670,101.38 × 666,365.28
  4. Step 4: Simplify right side
    1,210,189.56x = 1,112,897,573,712.09
  5. Step 5: Solve for x
    x = 1,112,897,573,712.09/1,210,189.56
  6. Step 6: Final answer
    x = 919,605.99

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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.