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Finding the Fourth Proportional to 520,966.40, 718,244.44 and 375,650.60

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Solution

The fourth proportional to 520,966.40, 718,244.44 and 375,650.60 is: 517,900.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,966.40 : 718,244.44 = 375,650.60 : x
  2. Step 2: Convert to fraction form
    520,966.40/718,244.44 = 375,650.60/x
  3. Step 3: Cross multiply
    520,966.40x = 718,244.44 × 375,650.60
  4. Step 4: Simplify right side
    520,966.40x = 269,808,954,832.66
  5. Step 5: Solve for x
    x = 269,808,954,832.66/520,966.40
  6. Step 6: Final answer
    x = 517,900.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.