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Finding the Fourth Proportional to 538,038,226.80, 807,199,057.80 and 192,955,870.80

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Solution

The fourth proportional to 538,038,226.80, 807,199,057.80 and 192,955,870.80 is: 289,484,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,038,226.80 : 807,199,057.80 = 192,955,870.80 : x
  2. Step 2: Convert to fraction form
    538,038,226.80/807,199,057.80 = 192,955,870.80/x
  3. Step 3: Cross multiply
    538,038,226.80x = 807,199,057.80 × 192,955,870.80
  4. Step 4: Simplify right side
    538,038,226.80x = 155,753,797,106,738,528
  5. Step 5: Solve for x
    x = 155,753,797,106,738,528/538,038,226.80
  6. Step 6: Final answer
    x = 289,484,630.18

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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.