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Finding the Fourth Proportional to 934,810.92, 1,401,771.69 and 485,081.10

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Solution

The fourth proportional to 934,810.92, 1,401,771.69 and 485,081.10 is: 727,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,810.92 : 1,401,771.69 = 485,081.10 : x
  2. Step 2: Convert to fraction form
    934,810.92/1,401,771.69 = 485,081.10/x
  3. Step 3: Cross multiply
    934,810.92x = 1,401,771.69 × 485,081.10
  4. Step 4: Simplify right side
    934,810.92x = 679,972,953,334.06
  5. Step 5: Solve for x
    x = 679,972,953,334.06/934,810.92
  6. Step 6: Final answer
    x = 727,390.90

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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.