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Finding the Fourth Proportional to 382,534.60, 576,666.91 and 356,844.64

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Solution

The fourth proportional to 382,534.60, 576,666.91 and 356,844.64 is: 537,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,534.60 : 576,666.91 = 356,844.64 : x
  2. Step 2: Convert to fraction form
    382,534.60/576,666.91 = 356,844.64/x
  3. Step 3: Cross multiply
    382,534.60x = 576,666.91 × 356,844.64
  4. Step 4: Simplify right side
    382,534.60x = 205,780,495,898.86
  5. Step 5: Solve for x
    x = 205,780,495,898.86/382,534.60
  6. Step 6: Final answer
    x = 537,939.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.