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Finding the Fourth Proportional to 517,321,163.55, 775,974,437.75 and 240,817,725.66

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Solution

The fourth proportional to 517,321,163.55, 775,974,437.75 and 240,817,725.66 is: 361,223,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,321,163.55 : 775,974,437.75 = 240,817,725.66 : x
  2. Step 2: Convert to fraction form
    517,321,163.55/775,974,437.75 = 240,817,725.66/x
  3. Step 3: Cross multiply
    517,321,163.55x = 775,974,437.75 × 240,817,725.66
  4. Step 4: Simplify right side
    517,321,163.55x = 186,868,399,264,168,288
  5. Step 5: Solve for x
    x = 186,868,399,264,168,288/517,321,163.55
  6. Step 6: Final answer
    x = 361,223,186.74

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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.