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Finding the Fourth Proportional to 316,699,543.20, 475,049,314.80 and 316,699,543.20

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Solution

The fourth proportional to 316,699,543.20, 475,049,314.80 and 316,699,543.20 is: 475,049,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,699,543.20 : 475,049,314.80 = 316,699,543.20 : x
  2. Step 2: Convert to fraction form
    316,699,543.20/475,049,314.80 = 316,699,543.20/x
  3. Step 3: Cross multiply
    316,699,543.20x = 475,049,314.80 × 316,699,543.20
  4. Step 4: Simplify right side
    316,699,543.20x = 150,447,900,994,632,992
  5. Step 5: Solve for x
    x = 150,447,900,994,632,992/316,699,543.20
  6. Step 6: Final answer
    x = 475,049,314.80

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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.