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Finding the Fourth Proportional to 570,657,052.90, 855,715,743.73 and 221,066,859.39

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Solution

The fourth proportional to 570,657,052.90, 855,715,743.73 and 221,066,859.39 is: 331,495,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,657,052.90 : 855,715,743.73 = 221,066,859.39 : x
  2. Step 2: Convert to fraction form
    570,657,052.90/855,715,743.73 = 221,066,859.39/x
  3. Step 3: Cross multiply
    570,657,052.90x = 855,715,743.73 × 221,066,859.39
  4. Step 4: Simplify right side
    570,657,052.90x = 189,170,391,996,969,184
  5. Step 5: Solve for x
    x = 189,170,391,996,969,184/570,657,052.90
  6. Step 6: Final answer
    x = 331,495,757.45

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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.