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Finding the Fourth Proportional to 291,513.36, 436,592 and 281,411.36

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Solution

The fourth proportional to 291,513.36, 436,592 and 281,411.36 is: 421,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,513.36 : 436,592 = 281,411.36 : x
  2. Step 2: Convert to fraction form
    291,513.36/436,592 = 281,411.36/x
  3. Step 3: Cross multiply
    291,513.36x = 436,592 × 281,411.36
  4. Step 4: Simplify right side
    291,513.36x = 122,861,948,485.12
  5. Step 5: Solve for x
    x = 122,861,948,485.12/291,513.36
  6. Step 6: Final answer
    x = 421,462.50

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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.