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Finding the Fourth Proportional to 719,704.80, 1,079,038.80 and 404,258.40

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Solution

The fourth proportional to 719,704.80, 1,079,038.80 and 404,258.40 is: 606,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,704.80 : 1,079,038.80 = 404,258.40 : x
  2. Step 2: Convert to fraction form
    719,704.80/1,079,038.80 = 404,258.40/x
  3. Step 3: Cross multiply
    719,704.80x = 1,079,038.80 × 404,258.40
  4. Step 4: Simplify right side
    719,704.80x = 436,210,498,825.92
  5. Step 5: Solve for x
    x = 436,210,498,825.92/719,704.80
  6. Step 6: Final answer
    x = 606,096.41

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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.