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Finding the Fourth Proportional to 893,604.70, 1,340,407.05 and 395,940.70

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Solution

The fourth proportional to 893,604.70, 1,340,407.05 and 395,940.70 is: 593,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,604.70 : 1,340,407.05 = 395,940.70 : x
  2. Step 2: Convert to fraction form
    893,604.70/1,340,407.05 = 395,940.70/x
  3. Step 3: Cross multiply
    893,604.70x = 1,340,407.05 × 395,940.70
  4. Step 4: Simplify right side
    893,604.70x = 530,721,705,661.94
  5. Step 5: Solve for x
    x = 530,721,705,661.94/893,604.70
  6. Step 6: Final answer
    x = 593,911.05

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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.