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Finding the Fourth Proportional to 417,492.64, 576,140.88 and 226,505.98

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Solution

The fourth proportional to 417,492.64, 576,140.88 and 226,505.98 is: 312,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,492.64 : 576,140.88 = 226,505.98 : x
  2. Step 2: Convert to fraction form
    417,492.64/576,140.88 = 226,505.98/x
  3. Step 3: Cross multiply
    417,492.64x = 576,140.88 × 226,505.98
  4. Step 4: Simplify right side
    417,492.64x = 130,499,354,642.46
  5. Step 5: Solve for x
    x = 130,499,354,642.46/417,492.64
  6. Step 6: Final answer
    x = 312,578.81

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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.