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Finding the Fourth Proportional to 577,485,770.40, 866,354,626.80 and 168,508,605.60

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Solution

The fourth proportional to 577,485,770.40, 866,354,626.80 and 168,508,605.60 is: 252,799,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,485,770.40 : 866,354,626.80 = 168,508,605.60 : x
  2. Step 2: Convert to fraction form
    577,485,770.40/866,354,626.80 = 168,508,605.60/x
  3. Step 3: Cross multiply
    577,485,770.40x = 866,354,626.80 × 168,508,605.60
  4. Step 4: Simplify right side
    577,485,770.40x = 145,988,210,117,176,384
  5. Step 5: Solve for x
    x = 145,988,210,117,176,384/577,485,770.40
  6. Step 6: Final answer
    x = 252,799,666.42

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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.