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Finding the Fourth Proportional to 264,912.80, 397,369.20 and 152,938.40

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Solution

The fourth proportional to 264,912.80, 397,369.20 and 152,938.40 is: 229,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,912.80 : 397,369.20 = 152,938.40 : x
  2. Step 2: Convert to fraction form
    264,912.80/397,369.20 = 152,938.40/x
  3. Step 3: Cross multiply
    264,912.80x = 397,369.20 × 152,938.40
  4. Step 4: Simplify right side
    264,912.80x = 60,773,009,657.28
  5. Step 5: Solve for x
    x = 60,773,009,657.28/264,912.80
  6. Step 6: Final answer
    x = 229,407.60

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1.5x scale

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.