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Finding the Fourth Proportional to 978,588.80, 1,467,883.20 and 895,920.20

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Solution

The fourth proportional to 978,588.80, 1,467,883.20 and 895,920.20 is: 1,343,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,588.80 : 1,467,883.20 = 895,920.20 : x
  2. Step 2: Convert to fraction form
    978,588.80/1,467,883.20 = 895,920.20/x
  3. Step 3: Cross multiply
    978,588.80x = 1,467,883.20 × 895,920.20
  4. Step 4: Simplify right side
    978,588.80x = 1,315,106,210,120.64
  5. Step 5: Solve for x
    x = 1,315,106,210,120.64/978,588.80
  6. Step 6: Final answer
    x = 1,343,880.30

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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.