Home / 621,000.53-931,500.79-306,072.53

Finding the Fourth Proportional to 621,000.53, 931,500.79 and 306,072.53

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Solution

The fourth proportional to 621,000.53, 931,500.79 and 306,072.53 is: 459,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,000.53 : 931,500.79 = 306,072.53 : x
  2. Step 2: Convert to fraction form
    621,000.53/931,500.79 = 306,072.53/x
  3. Step 3: Cross multiply
    621,000.53x = 931,500.79 × 306,072.53
  4. Step 4: Simplify right side
    621,000.53x = 285,106,798,069.61
  5. Step 5: Solve for x
    x = 285,106,798,069.61/621,000.53
  6. Step 6: Final answer
    x = 459,108.79

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Similar ratio
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1.5x scale

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.