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Finding the Fourth Proportional to 293,428.90, 440,143.35 and 273,600.10

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Solution

The fourth proportional to 293,428.90, 440,143.35 and 273,600.10 is: 410,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,428.90 : 440,143.35 = 273,600.10 : x
  2. Step 2: Convert to fraction form
    293,428.90/440,143.35 = 273,600.10/x
  3. Step 3: Cross multiply
    293,428.90x = 440,143.35 × 273,600.10
  4. Step 4: Simplify right side
    293,428.90x = 120,423,264,574.34
  5. Step 5: Solve for x
    x = 120,423,264,574.34/293,428.90
  6. Step 6: Final answer
    x = 410,400.15

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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.