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Finding the Fourth Proportional to 665,711.40, 996,598.80 and 626,782.80

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Solution

The fourth proportional to 665,711.40, 996,598.80 and 626,782.80 is: 938,321.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,711.40 : 996,598.80 = 626,782.80 : x
  2. Step 2: Convert to fraction form
    665,711.40/996,598.80 = 626,782.80/x
  3. Step 3: Cross multiply
    665,711.40x = 996,598.80 × 626,782.80
  4. Step 4: Simplify right side
    665,711.40x = 624,650,986,340.64
  5. Step 5: Solve for x
    x = 624,650,986,340.64/665,711.40
  6. Step 6: Final answer
    x = 938,321.00

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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.