Home / 1,210,187.56-1,670,098.64-666,363.28

Finding the Fourth Proportional to 1,210,187.56, 1,670,098.64 and 666,363.28

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Solution

The fourth proportional to 1,210,187.56, 1,670,098.64 and 666,363.28 is: 919,603.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,187.56 : 1,670,098.64 = 666,363.28 : x
  2. Step 2: Convert to fraction form
    1,210,187.56/1,670,098.64 = 666,363.28/x
  3. Step 3: Cross multiply
    1,210,187.56x = 1,670,098.64 × 666,363.28
  4. Step 4: Simplify right side
    1,210,187.56x = 1,112,892,407,673.94
  5. Step 5: Solve for x
    x = 1,112,892,407,673.94/1,210,187.56
  6. Step 6: Final answer
    x = 919,603.25

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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.