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Finding the Fourth Proportional to 577,096.60, 865,644.90 and 311,376.10

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Solution

The fourth proportional to 577,096.60, 865,644.90 and 311,376.10 is: 467,064.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,096.60 : 865,644.90 = 311,376.10 : x
  2. Step 2: Convert to fraction form
    577,096.60/865,644.90 = 311,376.10/x
  3. Step 3: Cross multiply
    577,096.60x = 865,644.90 × 311,376.10
  4. Step 4: Simplify right side
    577,096.60x = 269,541,132,946.89
  5. Step 5: Solve for x
    x = 269,541,132,946.89/577,096.60
  6. Step 6: Final answer
    x = 467,064.15

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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.