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Finding the Fourth Proportional to 357,705.76, 536,143.92 and 336,969.76

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Solution

The fourth proportional to 357,705.76, 536,143.92 and 336,969.76 is: 505,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,705.76 : 536,143.92 = 336,969.76 : x
  2. Step 2: Convert to fraction form
    357,705.76/536,143.92 = 336,969.76/x
  3. Step 3: Cross multiply
    357,705.76x = 536,143.92 × 336,969.76
  4. Step 4: Simplify right side
    357,705.76x = 180,664,288,047.86
  5. Step 5: Solve for x
    x = 180,664,288,047.86/357,705.76
  6. Step 6: Final answer
    x = 505,063.96

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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.