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Finding the Fourth Proportional to 366,289.80, 548,548.89 and 316,688.64

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Solution

The fourth proportional to 366,289.80, 548,548.89 and 316,688.64 is: 474,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,289.80 : 548,548.89 = 316,688.64 : x
  2. Step 2: Convert to fraction form
    366,289.80/548,548.89 = 316,688.64/x
  3. Step 3: Cross multiply
    366,289.80x = 548,548.89 × 316,688.64
  4. Step 4: Simplify right side
    366,289.80x = 173,719,201,947.61
  5. Step 5: Solve for x
    x = 173,719,201,947.61/366,289.80
  6. Step 6: Final answer
    x = 474,267.10

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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.