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Finding the Fourth Proportional to 577,368,425.80, 866,052,638.70 and 189,097,631.20

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Solution

The fourth proportional to 577,368,425.80, 866,052,638.70 and 189,097,631.20 is: 283,646,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,368,425.80 : 866,052,638.70 = 189,097,631.20 : x
  2. Step 2: Convert to fraction form
    577,368,425.80/866,052,638.70 = 189,097,631.20/x
  3. Step 3: Cross multiply
    577,368,425.80x = 866,052,638.70 × 189,097,631.20
  4. Step 4: Simplify right side
    577,368,425.80x = 163,768,502,472,679,456
  5. Step 5: Solve for x
    x = 163,768,502,472,679,456/577,368,425.80
  6. Step 6: Final answer
    x = 283,646,446.80

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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.