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Finding the Fourth Proportional to 6,645,673.80, 9,968,510.70 and 3,803,448.60

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Solution

The fourth proportional to 6,645,673.80, 9,968,510.70 and 3,803,448.60 is: 5,705,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645,673.80 : 9,968,510.70 = 3,803,448.60 : x
  2. Step 2: Convert to fraction form
    6,645,673.80/9,968,510.70 = 3,803,448.60/x
  3. Step 3: Cross multiply
    6,645,673.80x = 9,968,510.70 × 3,803,448.60
  4. Step 4: Simplify right side
    6,645,673.80x = 37,914,718,066,000.02
  5. Step 5: Solve for x
    x = 37,914,718,066,000.02/6,645,673.80
  6. Step 6: Final answer
    x = 5,705,172.90

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Similar ratio
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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.