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Finding the Fourth Proportional to 544,511.40, 815,600.70 and 439,535.40

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Solution

The fourth proportional to 544,511.40, 815,600.70 and 439,535.40 is: 658,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,511.40 : 815,600.70 = 439,535.40 : x
  2. Step 2: Convert to fraction form
    544,511.40/815,600.70 = 439,535.40/x
  3. Step 3: Cross multiply
    544,511.40x = 815,600.70 × 439,535.40
  4. Step 4: Simplify right side
    544,511.40x = 358,485,379,914.78
  5. Step 5: Solve for x
    x = 358,485,379,914.78/544,511.40
  6. Step 6: Final answer
    x = 658,361.57

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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.