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Finding the Fourth Proportional to 500,050.52, 690,069.68 and 270,607.77

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Solution

The fourth proportional to 500,050.52, 690,069.68 and 270,607.77 is: 373,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,050.52 : 690,069.68 = 270,607.77 : x
  2. Step 2: Convert to fraction form
    500,050.52/690,069.68 = 270,607.77/x
  3. Step 3: Cross multiply
    500,050.52x = 690,069.68 × 270,607.77
  4. Step 4: Simplify right side
    500,050.52x = 186,738,215,896.38
  5. Step 5: Solve for x
    x = 186,738,215,896.38/500,050.52
  6. Step 6: Final answer
    x = 373,438.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.