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Finding the Fourth Proportional to 293,874.60, 440,423.10 and 260,437.80

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Solution

The fourth proportional to 293,874.60, 440,423.10 and 260,437.80 is: 390,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,874.60 : 440,423.10 = 260,437.80 : x
  2. Step 2: Convert to fraction form
    293,874.60/440,423.10 = 260,437.80/x
  3. Step 3: Cross multiply
    293,874.60x = 440,423.10 × 260,437.80
  4. Step 4: Simplify right side
    293,874.60x = 114,702,823,233.18
  5. Step 5: Solve for x
    x = 114,702,823,233.18/293,874.60
  6. Step 6: Final answer
    x = 390,312.14

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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.