Home / 1,210,654.44-1,670,703.03-666,785.61

Finding the Fourth Proportional to 1,210,654.44, 1,670,703.03 and 666,785.61

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Solution

The fourth proportional to 1,210,654.44, 1,670,703.03 and 666,785.61 is: 920,164.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,654.44 : 1,670,703.03 = 666,785.61 : x
  2. Step 2: Convert to fraction form
    1,210,654.44/1,670,703.03 = 666,785.61/x
  3. Step 3: Cross multiply
    1,210,654.44x = 1,670,703.03 × 666,785.61
  4. Step 4: Simplify right side
    1,210,654.44x = 1,114,000,738,987.40
  5. Step 5: Solve for x
    x = 1,114,000,738,987.40/1,210,654.44
  6. Step 6: Final answer
    x = 920,164.09

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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.