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Finding the Fourth Proportional to 606,431,271.80, 909,646,907.70 and 541,808,046.20

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Solution

The fourth proportional to 606,431,271.80, 909,646,907.70 and 541,808,046.20 is: 812,712,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,431,271.80 : 909,646,907.70 = 541,808,046.20 : x
  2. Step 2: Convert to fraction form
    606,431,271.80/909,646,907.70 = 541,808,046.20/x
  3. Step 3: Cross multiply
    606,431,271.80x = 909,646,907.70 × 541,808,046.20
  4. Step 4: Simplify right side
    606,431,271.80x = 492,854,013,792,808,832
  5. Step 5: Solve for x
    x = 492,854,013,792,808,832/606,431,271.80
  6. Step 6: Final answer
    x = 812,712,069.30

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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.