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Finding the Fourth Proportional to 366,912.30, 550,368.45 and 310,925.10

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Solution

The fourth proportional to 366,912.30, 550,368.45 and 310,925.10 is: 466,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912.30 : 550,368.45 = 310,925.10 : x
  2. Step 2: Convert to fraction form
    366,912.30/550,368.45 = 310,925.10/x
  3. Step 3: Cross multiply
    366,912.30x = 550,368.45 × 310,925.10
  4. Step 4: Simplify right side
    366,912.30x = 171,123,365,353.10
  5. Step 5: Solve for x
    x = 171,123,365,353.10/366,912.30
  6. Step 6: Final answer
    x = 466,387.65

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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.