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Finding the Fourth Proportional to 290,362.41, 437,249.07 and 253,363.86

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Solution

The fourth proportional to 290,362.41, 437,249.07 and 253,363.86 is: 381,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,362.41 : 437,249.07 = 253,363.86 : x
  2. Step 2: Convert to fraction form
    290,362.41/437,249.07 = 253,363.86/x
  3. Step 3: Cross multiply
    290,362.41x = 437,249.07 × 253,363.86
  4. Step 4: Simplify right side
    290,362.41x = 110,783,112,156.61
  5. Step 5: Solve for x
    x = 110,783,112,156.61/290,362.41
  6. Step 6: Final answer
    x = 381,533.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.