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Finding the Fourth Proportional to 264,287.80, 396,431.70 and 152,313.40

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Solution

The fourth proportional to 264,287.80, 396,431.70 and 152,313.40 is: 228,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,287.80 : 396,431.70 = 152,313.40 : x
  2. Step 2: Convert to fraction form
    264,287.80/396,431.70 = 152,313.40/x
  3. Step 3: Cross multiply
    264,287.80x = 396,431.70 × 152,313.40
  4. Step 4: Simplify right side
    264,287.80x = 60,381,860,094.78
  5. Step 5: Solve for x
    x = 60,381,860,094.78/264,287.80
  6. Step 6: Final answer
    x = 228,470.10

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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.