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Finding the Fourth Proportional to 688,563.40, 950,192.22 and 382,658.80

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Solution

The fourth proportional to 688,563.40, 950,192.22 and 382,658.80 is: 528,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,563.40 : 950,192.22 = 382,658.80 : x
  2. Step 2: Convert to fraction form
    688,563.40/950,192.22 = 382,658.80/x
  3. Step 3: Cross multiply
    688,563.40x = 950,192.22 × 382,658.80
  4. Step 4: Simplify right side
    688,563.40x = 363,599,414,674.54
  5. Step 5: Solve for x
    x = 363,599,414,674.54/688,563.40
  6. Step 6: Final answer
    x = 528,055.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.