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Finding the Fourth Proportional to 934,719.36, 1,401,664.32 and 579,719.04

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Solution

The fourth proportional to 934,719.36, 1,401,664.32 and 579,719.04 is: 869,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,719.36 : 1,401,664.32 = 579,719.04 : x
  2. Step 2: Convert to fraction form
    934,719.36/1,401,664.32 = 579,719.04/x
  3. Step 3: Cross multiply
    934,719.36x = 1,401,664.32 × 579,719.04
  4. Step 4: Simplify right side
    934,719.36x = 812,571,493,992.65
  5. Step 5: Solve for x
    x = 812,571,493,992.65/934,719.36
  6. Step 6: Final answer
    x = 869,321.35

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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.