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Finding the Fourth Proportional to 488,031.70, 731,094.12 and 336,201.96

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Solution

The fourth proportional to 488,031.70, 731,094.12 and 336,201.96 is: 503,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,031.70 : 731,094.12 = 336,201.96 : x
  2. Step 2: Convert to fraction form
    488,031.70/731,094.12 = 336,201.96/x
  3. Step 3: Cross multiply
    488,031.70x = 731,094.12 × 336,201.96
  4. Step 4: Simplify right side
    488,031.70x = 245,795,276,088.48
  5. Step 5: Solve for x
    x = 245,795,276,088.48/488,031.70
  6. Step 6: Final answer
    x = 503,646.13

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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.