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Finding the Fourth Proportional to 1,300,784.47, 1,794,942.13 and 719,915.29

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Solution

The fourth proportional to 1,300,784.47, 1,794,942.13 and 719,915.29 is: 993,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,784.47 : 1,794,942.13 = 719,915.29 : x
  2. Step 2: Convert to fraction form
    1,300,784.47/1,794,942.13 = 719,915.29/x
  3. Step 3: Cross multiply
    1,300,784.47x = 1,794,942.13 × 719,915.29
  4. Step 4: Simplify right side
    1,300,784.47x = 1,292,206,289,211.41
  5. Step 5: Solve for x
    x = 1,292,206,289,211.41/1,300,784.47
  6. Step 6: Final answer
    x = 993,405.38

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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.