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Finding the Fourth Proportional to 507,144.96, 699,870.78 and 277,711.92

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Solution

The fourth proportional to 507,144.96, 699,870.78 and 277,711.92 is: 383,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,144.96 : 699,870.78 = 277,711.92 : x
  2. Step 2: Convert to fraction form
    507,144.96/699,870.78 = 277,711.92/x
  3. Step 3: Cross multiply
    507,144.96x = 699,870.78 × 277,711.92
  4. Step 4: Simplify right side
    507,144.96x = 194,362,458,065.70
  5. Step 5: Solve for x
    x = 194,362,458,065.70/507,144.96
  6. Step 6: Final answer
    x = 383,248.33

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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.