Home / 1,210,339.71-1,670,202.54-666,372.15

Finding the Fourth Proportional to 1,210,339.71, 1,670,202.54 and 666,372.15

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Solution

The fourth proportional to 1,210,339.71, 1,670,202.54 and 666,372.15 is: 919,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,339.71 : 1,670,202.54 = 666,372.15 : x
  2. Step 2: Convert to fraction form
    1,210,339.71/1,670,202.54 = 666,372.15/x
  3. Step 3: Cross multiply
    1,210,339.71x = 1,670,202.54 × 666,372.15
  4. Step 4: Simplify right side
    1,210,339.71x = 1,112,976,457,515.26
  5. Step 5: Solve for x
    x = 1,112,976,457,515.26/1,210,339.71
  6. Step 6: Final answer
    x = 919,557.09

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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.