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Finding the Fourth Proportional to 477,871.50, 716,405.48 and 319,616.94

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Solution

The fourth proportional to 477,871.50, 716,405.48 and 319,616.94 is: 479,156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,871.50 : 716,405.48 = 319,616.94 : x
  2. Step 2: Convert to fraction form
    477,871.50/716,405.48 = 319,616.94/x
  3. Step 3: Cross multiply
    477,871.50x = 716,405.48 × 319,616.94
  4. Step 4: Simplify right side
    477,871.50x = 228,975,324,533.85
  5. Step 5: Solve for x
    x = 228,975,324,533.85/477,871.50
  6. Step 6: Final answer
    x = 479,156.69

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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.