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Finding the Fourth Proportional to 357,037.99, 535,558.83 and 120,382.72

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Solution

The fourth proportional to 357,037.99, 535,558.83 and 120,382.72 is: 180,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,037.99 : 535,558.83 = 120,382.72 : x
  2. Step 2: Convert to fraction form
    357,037.99/535,558.83 = 120,382.72/x
  3. Step 3: Cross multiply
    357,037.99x = 535,558.83 × 120,382.72
  4. Step 4: Simplify right side
    357,037.99x = 64,472,028,675.42
  5. Step 5: Solve for x
    x = 64,472,028,675.42/357,037.99
  6. Step 6: Final answer
    x = 180,574.70

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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.