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Finding the Fourth Proportional to 483,903.90, 678,165.30 and 483,903.90

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Solution

The fourth proportional to 483,903.90, 678,165.30 and 483,903.90 is: 678,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,903.90 : 678,165.30 = 483,903.90 : x
  2. Step 2: Convert to fraction form
    483,903.90/678,165.30 = 483,903.90/x
  3. Step 3: Cross multiply
    483,903.90x = 678,165.30 × 483,903.90
  4. Step 4: Simplify right side
    483,903.90x = 328,166,833,514.67
  5. Step 5: Solve for x
    x = 328,166,833,514.67/483,903.90
  6. Step 6: Final answer
    x = 678,165.30

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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.