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Finding the Fourth Proportional to 655,172.84, 980,934.42 and 334,630.64

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Solution

The fourth proportional to 655,172.84, 980,934.42 and 334,630.64 is: 501,013.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,172.84 : 980,934.42 = 334,630.64 : x
  2. Step 2: Convert to fraction form
    655,172.84/980,934.42 = 334,630.64/x
  3. Step 3: Cross multiply
    655,172.84x = 980,934.42 × 334,630.64
  4. Step 4: Simplify right side
    655,172.84x = 328,250,712,762.63
  5. Step 5: Solve for x
    x = 328,250,712,762.63/655,172.84
  6. Step 6: Final answer
    x = 501,013.92

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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.