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Finding the Fourth Proportional to 1,692,824.04, 2,336,090.76 and 928,890.36

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Solution

The fourth proportional to 1,692,824.04, 2,336,090.76 and 928,890.36 is: 1,281,865.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,824.04 : 2,336,090.76 = 928,890.36 : x
  2. Step 2: Convert to fraction form
    1,692,824.04/2,336,090.76 = 928,890.36/x
  3. Step 3: Cross multiply
    1,692,824.04x = 2,336,090.76 × 928,890.36
  4. Step 4: Simplify right side
    1,692,824.04x = 2,169,972,187,049.07
  5. Step 5: Solve for x
    x = 2,169,972,187,049.07/1,692,824.04
  6. Step 6: Final answer
    x = 1,281,865.18

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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.