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Finding the Fourth Proportional to 336,031.10, 504,046.65 and 290,411.90

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Solution

The fourth proportional to 336,031.10, 504,046.65 and 290,411.90 is: 435,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,031.10 : 504,046.65 = 290,411.90 : x
  2. Step 2: Convert to fraction form
    336,031.10/504,046.65 = 290,411.90/x
  3. Step 3: Cross multiply
    336,031.10x = 504,046.65 × 290,411.90
  4. Step 4: Simplify right side
    336,031.10x = 146,381,145,315.14
  5. Step 5: Solve for x
    x = 146,381,145,315.14/336,031.10
  6. Step 6: Final answer
    x = 435,617.85

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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.