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Finding the Fourth Proportional to 656,638.80, 984,990.60 and 341,710.80

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Solution

The fourth proportional to 656,638.80, 984,990.60 and 341,710.80 is: 512,583.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,638.80 : 984,990.60 = 341,710.80 : x
  2. Step 2: Convert to fraction form
    656,638.80/984,990.60 = 341,710.80/x
  3. Step 3: Cross multiply
    656,638.80x = 984,990.60 × 341,710.80
  4. Step 4: Simplify right side
    656,638.80x = 336,581,925,918.48
  5. Step 5: Solve for x
    x = 336,581,925,918.48/656,638.80
  6. Step 6: Final answer
    x = 512,583.06

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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.