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Finding the Fourth Proportional to 655,777,855.60, 983,666,783.40 and 171,103,663.60

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Solution

The fourth proportional to 655,777,855.60, 983,666,783.40 and 171,103,663.60 is: 256,655,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,777,855.60 : 983,666,783.40 = 171,103,663.60 : x
  2. Step 2: Convert to fraction form
    655,777,855.60/983,666,783.40 = 171,103,663.60/x
  3. Step 3: Cross multiply
    655,777,855.60x = 983,666,783.40 × 171,103,663.60
  4. Step 4: Simplify right side
    655,777,855.60x = 168,308,990,401,367,648
  5. Step 5: Solve for x
    x = 168,308,990,401,367,648/655,777,855.60
  6. Step 6: Final answer
    x = 256,655,495.40

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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.