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Finding the Fourth Proportional to 839,674.61, 1,259,709.65 and 334,264.37

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Solution

The fourth proportional to 839,674.61, 1,259,709.65 and 334,264.37 is: 501,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,674.61 : 1,259,709.65 = 334,264.37 : x
  2. Step 2: Convert to fraction form
    839,674.61/1,259,709.65 = 334,264.37/x
  3. Step 3: Cross multiply
    839,674.61x = 1,259,709.65 × 334,264.37
  4. Step 4: Simplify right side
    839,674.61x = 421,076,044,570.30
  5. Step 5: Solve for x
    x = 421,076,044,570.30/839,674.61
  6. Step 6: Final answer
    x = 501,475.26

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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.