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Finding the Fourth Proportional to 666,156, 919,295.28 and 364,350

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Solution

The fourth proportional to 666,156, 919,295.28 and 364,350 is: 502,803

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,156 : 919,295.28 = 364,350 : x
  2. Step 2: Convert to fraction form
    666,156/919,295.28 = 364,350/x
  3. Step 3: Cross multiply
    666,156x = 919,295.28 × 364,350
  4. Step 4: Simplify right side
    666,156x = 334,945,235,268
  5. Step 5: Solve for x
    x = 334,945,235,268/666,156
  6. Step 6: Final answer
    x = 502,803

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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.