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Finding the Fourth Proportional to 882,568,994.72, 1,218,000,525.74 and 486,091,905.44

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Solution

The fourth proportional to 882,568,994.72, 1,218,000,525.74 and 486,091,905.44 is: 670,837,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,568,994.72 : 1,218,000,525.74 = 486,091,905.44 : x
  2. Step 2: Convert to fraction form
    882,568,994.72/1,218,000,525.74 = 486,091,905.44/x
  3. Step 3: Cross multiply
    882,568,994.72x = 1,218,000,525.74 × 486,091,905.44
  4. Step 4: Simplify right side
    882,568,994.72x = 592,060,196,375,357,824
  5. Step 5: Solve for x
    x = 592,060,196,375,357,824/882,568,994.72
  6. Step 6: Final answer
    x = 670,837,294.22

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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.