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Finding the Fourth Proportional to 655,603.80, 983,211.30 and 256,014.60

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Solution

The fourth proportional to 655,603.80, 983,211.30 and 256,014.60 is: 383,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,603.80 : 983,211.30 = 256,014.60 : x
  2. Step 2: Convert to fraction form
    655,603.80/983,211.30 = 256,014.60/x
  3. Step 3: Cross multiply
    655,603.80x = 983,211.30 × 256,014.60
  4. Step 4: Simplify right side
    655,603.80x = 251,716,447,684.98
  5. Step 5: Solve for x
    x = 251,716,447,684.98/655,603.80
  6. Step 6: Final answer
    x = 383,945.99

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1.5x scale

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.