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Finding the Fourth Proportional to 443,415.27, 611,913.87 and 242,211.27

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Solution

The fourth proportional to 443,415.27, 611,913.87 and 242,211.27 is: 334,251.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,415.27 : 611,913.87 = 242,211.27 : x
  2. Step 2: Convert to fraction form
    443,415.27/611,913.87 = 242,211.27/x
  3. Step 3: Cross multiply
    443,415.27x = 611,913.87 × 242,211.27
  4. Step 4: Simplify right side
    443,415.27x = 148,212,435,583.32
  5. Step 5: Solve for x
    x = 148,212,435,583.32/443,415.27
  6. Step 6: Final answer
    x = 334,251.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.