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Finding the Fourth Proportional to 2,736,818.64, 4,104,836.64 and 939,668.40

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Solution

The fourth proportional to 2,736,818.64, 4,104,836.64 and 939,668.40 is: 1,409,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736,818.64 : 4,104,836.64 = 939,668.40 : x
  2. Step 2: Convert to fraction form
    2,736,818.64/4,104,836.64 = 939,668.40/x
  3. Step 3: Cross multiply
    2,736,818.64x = 4,104,836.64 × 939,668.40
  4. Step 4: Simplify right side
    2,736,818.64x = 3,857,185,277,770.18
  5. Step 5: Solve for x
    x = 3,857,185,277,770.18/2,736,818.64
  6. Step 6: Final answer
    x = 1,409,368.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.