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Finding the Fourth Proportional to 519,661.32, 779,750.37 and 291,815.34

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Solution

The fourth proportional to 519,661.32, 779,750.37 and 291,815.34 is: 437,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,661.32 : 779,750.37 = 291,815.34 : x
  2. Step 2: Convert to fraction form
    519,661.32/779,750.37 = 291,815.34/x
  3. Step 3: Cross multiply
    519,661.32x = 779,750.37 × 291,815.34
  4. Step 4: Simplify right side
    519,661.32x = 227,543,119,336.68
  5. Step 5: Solve for x
    x = 227,543,119,336.68/519,661.32
  6. Step 6: Final answer
    x = 437,868.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.