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Finding the Fourth Proportional to 256,522.07, 384,783.10 and 69,533.57

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Solution

The fourth proportional to 256,522.07, 384,783.10 and 69,533.57 is: 104,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,522.07 : 384,783.10 = 69,533.57 : x
  2. Step 2: Convert to fraction form
    256,522.07/384,783.10 = 69,533.57/x
  3. Step 3: Cross multiply
    256,522.07x = 384,783.10 × 69,533.57
  4. Step 4: Simplify right side
    256,522.07x = 26,755,340,520.92
  5. Step 5: Solve for x
    x = 26,755,340,520.92/256,522.07
  6. Step 6: Final answer
    x = 104,300.35

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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.