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Finding the Fourth Proportional to 488,590,488.88, 674,259,388.68 and 265,572,695.12

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Solution

The fourth proportional to 488,590,488.88, 674,259,388.68 and 265,572,695.12 is: 366,492,772.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,590,488.88 : 674,259,388.68 = 265,572,695.12 : x
  2. Step 2: Convert to fraction form
    488,590,488.88/674,259,388.68 = 265,572,695.12/x
  3. Step 3: Cross multiply
    488,590,488.88x = 674,259,388.68 × 265,572,695.12
  4. Step 4: Simplify right side
    488,590,488.88x = 179,064,883,061,711,200
  5. Step 5: Solve for x
    x = 179,064,883,061,711,200/488,590,488.88
  6. Step 6: Final answer
    x = 366,492,772.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.