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Finding the Fourth Proportional to 531,441,995.80, 797,162,993.70 and 338,210,048.20

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Solution

The fourth proportional to 531,441,995.80, 797,162,993.70 and 338,210,048.20 is: 507,315,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,441,995.80 : 797,162,993.70 = 338,210,048.20 : x
  2. Step 2: Convert to fraction form
    531,441,995.80/797,162,993.70 = 338,210,048.20/x
  3. Step 3: Cross multiply
    531,441,995.80x = 797,162,993.70 × 338,210,048.20
  4. Step 4: Simplify right side
    531,441,995.80x = 269,608,534,522,533,312
  5. Step 5: Solve for x
    x = 269,608,534,522,533,312/531,441,995.80
  6. Step 6: Final answer
    x = 507,315,072.30

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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.