Home / 665,724.40-996,618.30-626,795.80

Finding the Fourth Proportional to 665,724.40, 996,618.30 and 626,795.80

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Solution

The fourth proportional to 665,724.40, 996,618.30 and 626,795.80 is: 938,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,724.40 : 996,618.30 = 626,795.80 : x
  2. Step 2: Convert to fraction form
    665,724.40/996,618.30 = 626,795.80/x
  3. Step 3: Cross multiply
    665,724.40x = 996,618.30 × 626,795.80
  4. Step 4: Simplify right side
    665,724.40x = 624,676,164,643.14
  5. Step 5: Solve for x
    x = 624,676,164,643.14/665,724.40
  6. Step 6: Final answer
    x = 938,340.50

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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.