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Finding the Fourth Proportional to 555,240,754.68, 766,232,314.03 and 307,738,087.80

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Solution

The fourth proportional to 555,240,754.68, 766,232,314.03 and 307,738,087.80 is: 424,678,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,240,754.68 : 766,232,314.03 = 307,738,087.80 : x
  2. Step 2: Convert to fraction form
    555,240,754.68/766,232,314.03 = 307,738,087.80/x
  3. Step 3: Cross multiply
    555,240,754.68x = 766,232,314.03 × 307,738,087.80
  4. Step 4: Simplify right side
    555,240,754.68x = 235,798,867,130,161,312
  5. Step 5: Solve for x
    x = 235,798,867,130,161,312/555,240,754.68
  6. Step 6: Final answer
    x = 424,678,601.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.