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Finding the Fourth Proportional to 351,601.35, 527,405.31 and 85,364.19

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Solution

The fourth proportional to 351,601.35, 527,405.31 and 85,364.19 is: 128,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,601.35 : 527,405.31 = 85,364.19 : x
  2. Step 2: Convert to fraction form
    351,601.35/527,405.31 = 85,364.19/x
  3. Step 3: Cross multiply
    351,601.35x = 527,405.31 × 85,364.19
  4. Step 4: Simplify right side
    351,601.35x = 45,021,527,089.85
  5. Step 5: Solve for x
    x = 45,021,527,089.85/351,601.35
  6. Step 6: Final answer
    x = 128,047.08

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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.