Home / 1,005,841.74-1,388,635.47-666,769.26

Finding the Fourth Proportional to 1,005,841.74, 1,388,635.47 and 666,769.26

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Solution

The fourth proportional to 1,005,841.74, 1,388,635.47 and 666,769.26 is: 920,521.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,841.74 : 1,388,635.47 = 666,769.26 : x
  2. Step 2: Convert to fraction form
    1,005,841.74/1,388,635.47 = 666,769.26/x
  3. Step 3: Cross multiply
    1,005,841.74x = 1,388,635.47 × 666,769.26
  4. Step 4: Simplify right side
    1,005,841.74x = 925,899,444,741.65
  5. Step 5: Solve for x
    x = 925,899,444,741.65/1,005,841.74
  6. Step 6: Final answer
    x = 920,521.99

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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.