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Finding the Fourth Proportional to 4,491,955.76, 6,736,941 and 1,296,386.72

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Solution

The fourth proportional to 4,491,955.76, 6,736,941 and 1,296,386.72 is: 1,944,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,491,955.76 : 6,736,941 = 1,296,386.72 : x
  2. Step 2: Convert to fraction form
    4,491,955.76/6,736,941 = 1,296,386.72/x
  3. Step 3: Cross multiply
    4,491,955.76x = 6,736,941 × 1,296,386.72
  4. Step 4: Simplify right side
    4,491,955.76x = 8,733,680,845,823.52
  5. Step 5: Solve for x
    x = 8,733,680,845,823.52/4,491,955.76
  6. Step 6: Final answer
    x = 1,944,293.60

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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.