Home / 1,210,244.31-1,670,178.56-666,417.60

Finding the Fourth Proportional to 1,210,244.31, 1,670,178.56 and 666,417.60

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Solution

The fourth proportional to 1,210,244.31, 1,670,178.56 and 666,417.60 is: 919,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,244.31 : 1,670,178.56 = 666,417.60 : x
  2. Step 2: Convert to fraction form
    1,210,244.31/1,670,178.56 = 666,417.60/x
  3. Step 3: Cross multiply
    1,210,244.31x = 1,670,178.56 × 666,417.60
  4. Step 4: Simplify right side
    1,210,244.31x = 1,113,036,384,194.57
  5. Step 5: Solve for x
    x = 1,113,036,384,194.57/1,210,244.31
  6. Step 6: Final answer
    x = 919,679.09

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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.