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Finding the Fourth Proportional to 412,840, 619,364.04 and 117,352

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Solution

The fourth proportional to 412,840, 619,364.04 and 117,352 is: 176,057.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,840 : 619,364.04 = 117,352 : x
  2. Step 2: Convert to fraction form
    412,840/619,364.04 = 117,352/x
  3. Step 3: Cross multiply
    412,840x = 619,364.04 × 117,352
  4. Step 4: Simplify right side
    412,840x = 72,683,608,822.08
  5. Step 5: Solve for x
    x = 72,683,608,822.08/412,840
  6. Step 6: Final answer
    x = 176,057.57

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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.