Home / 1,210,306.60-1,670,235.54-666,493

Finding the Fourth Proportional to 1,210,306.60, 1,670,235.54 and 666,493

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Solution

The fourth proportional to 1,210,306.60, 1,670,235.54 and 666,493 is: 919,767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,306.60 : 1,670,235.54 = 666,493 : x
  2. Step 2: Convert to fraction form
    1,210,306.60/1,670,235.54 = 666,493/x
  3. Step 3: Cross multiply
    1,210,306.60x = 1,670,235.54 × 666,493
  4. Step 4: Simplify right side
    1,210,306.60x = 1,113,200,295,761.22
  5. Step 5: Solve for x
    x = 1,113,200,295,761.22/1,210,306.60
  6. Step 6: Final answer
    x = 919,767.19

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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.