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Finding the Fourth Proportional to 628,059.88, 866,706.20 and 366,465.21

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Solution

The fourth proportional to 628,059.88, 866,706.20 and 366,465.21 is: 505,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,059.88 : 866,706.20 = 366,465.21 : x
  2. Step 2: Convert to fraction form
    628,059.88/866,706.20 = 366,465.21/x
  3. Step 3: Cross multiply
    628,059.88x = 866,706.20 × 366,465.21
  4. Step 4: Simplify right side
    628,059.88x = 317,617,671,788.98
  5. Step 5: Solve for x
    x = 317,617,671,788.98/628,059.88
  6. Step 6: Final answer
    x = 505,712.41

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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.