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Finding the Fourth Proportional to 393,336,521.55, 588,871,041.53 and 393,336,521.55

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Solution

The fourth proportional to 393,336,521.55, 588,871,041.53 and 393,336,521.55 is: 588,871,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,336,521.55 : 588,871,041.53 = 393,336,521.55 : x
  2. Step 2: Convert to fraction form
    393,336,521.55/588,871,041.53 = 393,336,521.55/x
  3. Step 3: Cross multiply
    393,336,521.55x = 588,871,041.53 × 393,336,521.55
  4. Step 4: Simplify right side
    393,336,521.55x = 231,624,487,114,969,120
  5. Step 5: Solve for x
    x = 231,624,487,114,969,120/393,336,521.55
  6. Step 6: Final answer
    x = 588,871,041.53

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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.