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Finding the Fourth Proportional to 604,706.84, 834,216.23 and 389,915.90

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Solution

The fourth proportional to 604,706.84, 834,216.23 and 389,915.90 is: 537,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,706.84 : 834,216.23 = 389,915.90 : x
  2. Step 2: Convert to fraction form
    604,706.84/834,216.23 = 389,915.90/x
  3. Step 3: Cross multiply
    604,706.84x = 834,216.23 × 389,915.90
  4. Step 4: Simplify right side
    604,706.84x = 325,274,172,115.06
  5. Step 5: Solve for x
    x = 325,274,172,115.06/604,706.84
  6. Step 6: Final answer
    x = 537,903.91

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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.