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Finding the Fourth Proportional to 575,511.76, 863,516.31 and 308,961.01

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Solution

The fourth proportional to 575,511.76, 863,516.31 and 308,961.01 is: 463,575.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,511.76 : 863,516.31 = 308,961.01 : x
  2. Step 2: Convert to fraction form
    575,511.76/863,516.31 = 308,961.01/x
  3. Step 3: Cross multiply
    575,511.76x = 863,516.31 × 308,961.01
  4. Step 4: Simplify right side
    575,511.76x = 266,792,871,289.07
  5. Step 5: Solve for x
    x = 266,792,871,289.07/575,511.76
  6. Step 6: Final answer
    x = 463,575.01

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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.