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Finding the Fourth Proportional to 351,803.60, 527,705.40 and 194,339.60

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Solution

The fourth proportional to 351,803.60, 527,705.40 and 194,339.60 is: 291,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,803.60 : 527,705.40 = 194,339.60 : x
  2. Step 2: Convert to fraction form
    351,803.60/527,705.40 = 194,339.60/x
  3. Step 3: Cross multiply
    351,803.60x = 527,705.40 × 194,339.60
  4. Step 4: Simplify right side
    351,803.60x = 102,554,056,353.84
  5. Step 5: Solve for x
    x = 102,554,056,353.84/351,803.60
  6. Step 6: Final answer
    x = 291,509.40

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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.