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Finding the Fourth Proportional to 520,049.15, 729,643.45 and 520,049.15

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Solution

The fourth proportional to 520,049.15, 729,643.45 and 520,049.15 is: 729,643.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,049.15 : 729,643.45 = 520,049.15 : x
  2. Step 2: Convert to fraction form
    520,049.15/729,643.45 = 520,049.15/x
  3. Step 3: Cross multiply
    520,049.15x = 729,643.45 × 520,049.15
  4. Step 4: Simplify right side
    520,049.15x = 379,450,455,975.57
  5. Step 5: Solve for x
    x = 379,450,455,975.57/520,049.15
  6. Step 6: Final answer
    x = 729,643.45

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.