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Finding the Fourth Proportional to 379,119,041.21, 568,678,561.82 and 379,119,041.21

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Solution

The fourth proportional to 379,119,041.21, 568,678,561.82 and 379,119,041.21 is: 568,678,561.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,119,041.21 : 568,678,561.82 = 379,119,041.21 : x
  2. Step 2: Convert to fraction form
    379,119,041.21/568,678,561.82 = 379,119,041.21/x
  3. Step 3: Cross multiply
    379,119,041.21x = 568,678,561.82 × 379,119,041.21
  4. Step 4: Simplify right side
    379,119,041.21x = 215,596,871,114,827,904
  5. Step 5: Solve for x
    x = 215,596,871,114,827,904/379,119,041.21
  6. Step 6: Final answer
    x = 568,678,561.82

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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.