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Finding the Fourth Proportional to 657,000.40, 984,820.20 and 356,846.80

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Solution

The fourth proportional to 657,000.40, 984,820.20 and 356,846.80 is: 534,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,000.40 : 984,820.20 = 356,846.80 : x
  2. Step 2: Convert to fraction form
    657,000.40/984,820.20 = 356,846.80/x
  3. Step 3: Cross multiply
    657,000.40x = 984,820.20 × 356,846.80
  4. Step 4: Simplify right side
    657,000.40x = 351,429,936,945.36
  5. Step 5: Solve for x
    x = 351,429,936,945.36/657,000.40
  6. Step 6: Final answer
    x = 534,900.64

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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.