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Finding the Fourth Proportional to 1,221,668.02, 1,685,844.75 and 677,798.02

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Solution

The fourth proportional to 1,221,668.02, 1,685,844.75 and 677,798.02 is: 935,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,668.02 : 1,685,844.75 = 677,798.02 : x
  2. Step 2: Convert to fraction form
    1,221,668.02/1,685,844.75 = 677,798.02/x
  3. Step 3: Cross multiply
    1,221,668.02x = 1,685,844.75 × 677,798.02
  4. Step 4: Simplify right side
    1,221,668.02x = 1,142,662,233,577.40
  5. Step 5: Solve for x
    x = 1,142,662,233,577.40/1,221,668.02
  6. Step 6: Final answer
    x = 935,329.58

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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.