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Finding the Fourth Proportional to 376,875.99, 519,569.24 and 300,653.78

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Solution

The fourth proportional to 376,875.99, 519,569.24 and 300,653.78 is: 414,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,875.99 : 519,569.24 = 300,653.78 : x
  2. Step 2: Convert to fraction form
    376,875.99/519,569.24 = 300,653.78/x
  3. Step 3: Cross multiply
    376,875.99x = 519,569.24 × 300,653.78
  4. Step 4: Simplify right side
    376,875.99x = 156,210,451,876.61
  5. Step 5: Solve for x
    x = 156,210,451,876.61/376,875.99
  6. Step 6: Final answer
    x = 414,487.67

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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.