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Finding the Fourth Proportional to 483,822.40, 678,051.20 and 483,822.40

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Solution

The fourth proportional to 483,822.40, 678,051.20 and 483,822.40 is: 678,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,822.40 : 678,051.20 = 483,822.40 : x
  2. Step 2: Convert to fraction form
    483,822.40/678,051.20 = 483,822.40/x
  3. Step 3: Cross multiply
    483,822.40x = 678,051.20 × 483,822.40
  4. Step 4: Simplify right side
    483,822.40x = 328,056,358,906.88
  5. Step 5: Solve for x
    x = 328,056,358,906.88/483,822.40
  6. Step 6: Final answer
    x = 678,051.20

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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.