Home / 1,210,841.33-1,670,953.21-666,964.51

Finding the Fourth Proportional to 1,210,841.33, 1,670,953.21 and 666,964.51

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Solution

The fourth proportional to 1,210,841.33, 1,670,953.21 and 666,964.51 is: 920,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,841.33 : 1,670,953.21 = 666,964.51 : x
  2. Step 2: Convert to fraction form
    1,210,841.33/1,670,953.21 = 666,964.51/x
  3. Step 3: Cross multiply
    1,210,841.33x = 1,670,953.21 × 666,964.51
  4. Step 4: Simplify right side
    1,210,841.33x = 1,114,466,488,940.58
  5. Step 5: Solve for x
    x = 1,114,466,488,940.58/1,210,841.33
  6. Step 6: Final answer
    x = 920,406.71

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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.