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Finding the Fourth Proportional to 346,378.68, 519,555.72 and 133,091.64

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Solution

The fourth proportional to 346,378.68, 519,555.72 and 133,091.64 is: 199,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,378.68 : 519,555.72 = 133,091.64 : x
  2. Step 2: Convert to fraction form
    346,378.68/519,555.72 = 133,091.64/x
  3. Step 3: Cross multiply
    346,378.68x = 519,555.72 × 133,091.64
  4. Step 4: Simplify right side
    346,378.68x = 69,148,522,846.18
  5. Step 5: Solve for x
    x = 69,148,522,846.18/346,378.68
  6. Step 6: Final answer
    x = 199,632.73

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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.