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Finding the Fourth Proportional to 2,912,497.68, 4,368,742.68 and 1,354,368.72

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Solution

The fourth proportional to 2,912,497.68, 4,368,742.68 and 1,354,368.72 is: 2,031,551.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,497.68 : 4,368,742.68 = 1,354,368.72 : x
  2. Step 2: Convert to fraction form
    2,912,497.68/4,368,742.68 = 1,354,368.72/x
  3. Step 3: Cross multiply
    2,912,497.68x = 4,368,742.68 × 1,354,368.72
  4. Step 4: Simplify right side
    2,912,497.68x = 5,916,888,431,520.97
  5. Step 5: Solve for x
    x = 5,916,888,431,520.97/2,912,497.68
  6. Step 6: Final answer
    x = 2,031,551.29

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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.