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Finding the Fourth Proportional to 483,793.40, 678,010.60 and 483,793.40

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Solution

The fourth proportional to 483,793.40, 678,010.60 and 483,793.40 is: 678,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,793.40 : 678,010.60 = 483,793.40 : x
  2. Step 2: Convert to fraction form
    483,793.40/678,010.60 = 483,793.40/x
  3. Step 3: Cross multiply
    483,793.40x = 678,010.60 × 483,793.40
  4. Step 4: Simplify right side
    483,793.40x = 328,017,053,410.04
  5. Step 5: Solve for x
    x = 328,017,053,410.04/483,793.40
  6. Step 6: Final answer
    x = 678,010.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.