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Finding the Fourth Proportional to 273,313.90, 409,970.85 and 155,215.90

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Solution

The fourth proportional to 273,313.90, 409,970.85 and 155,215.90 is: 232,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,313.90 : 409,970.85 = 155,215.90 : x
  2. Step 2: Convert to fraction form
    273,313.90/409,970.85 = 155,215.90/x
  3. Step 3: Cross multiply
    273,313.90x = 409,970.85 × 155,215.90
  4. Step 4: Simplify right side
    273,313.90x = 63,633,994,456.52
  5. Step 5: Solve for x
    x = 63,633,994,456.52/273,313.90
  6. Step 6: Final answer
    x = 232,823.85

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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.