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Finding the Fourth Proportional to 4,689,968.60, 7,034,952.90 and 1,993,616.30

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Solution

The fourth proportional to 4,689,968.60, 7,034,952.90 and 1,993,616.30 is: 2,990,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689,968.60 : 7,034,952.90 = 1,993,616.30 : x
  2. Step 2: Convert to fraction form
    4,689,968.60/7,034,952.90 = 1,993,616.30/x
  3. Step 3: Cross multiply
    4,689,968.60x = 7,034,952.90 × 1,993,616.30
  4. Step 4: Simplify right side
    4,689,968.60x = 14,024,996,771,172.27
  5. Step 5: Solve for x
    x = 14,024,996,771,172.27/4,689,968.60
  6. Step 6: Final answer
    x = 2,990,424.45

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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.