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Finding the Fourth Proportional to 478,479,351.69, 717,719,027.94 and 114,973,707.69

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Solution

The fourth proportional to 478,479,351.69, 717,719,027.94 and 114,973,707.69 is: 172,460,561.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,479,351.69 : 717,719,027.94 = 114,973,707.69 : x
  2. Step 2: Convert to fraction form
    478,479,351.69/717,719,027.94 = 114,973,707.69/x
  3. Step 3: Cross multiply
    478,479,351.69x = 717,719,027.94 × 114,973,707.69
  4. Step 4: Simplify right side
    478,479,351.69x = 82,518,817,721,924,512
  5. Step 5: Solve for x
    x = 82,518,817,721,924,512/478,479,351.69
  6. Step 6: Final answer
    x = 172,460,561.63

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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.