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Finding the Fourth Proportional to 493,185.20, 680,595.56 and 266,830.70

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Solution

The fourth proportional to 493,185.20, 680,595.56 and 266,830.70 is: 368,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,185.20 : 680,595.56 = 266,830.70 : x
  2. Step 2: Convert to fraction form
    493,185.20/680,595.56 = 266,830.70/x
  3. Step 3: Cross multiply
    493,185.20x = 680,595.56 × 266,830.70
  4. Step 4: Simplify right side
    493,185.20x = 181,603,784,954.56
  5. Step 5: Solve for x
    x = 181,603,784,954.56/493,185.20
  6. Step 6: Final answer
    x = 368,226.35

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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.