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Finding the Fourth Proportional to 417,478.96, 576,121.16 and 226,492.32

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Solution

The fourth proportional to 417,478.96, 576,121.16 and 226,492.32 is: 312,559.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,478.96 : 576,121.16 = 226,492.32 : x
  2. Step 2: Convert to fraction form
    417,478.96/576,121.16 = 226,492.32/x
  3. Step 3: Cross multiply
    417,478.96x = 576,121.16 × 226,492.32
  4. Step 4: Simplify right side
    417,478.96x = 130,487,018,129.49
  5. Step 5: Solve for x
    x = 130,487,018,129.49/417,478.96
  6. Step 6: Final answer
    x = 312,559.51

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1.5x scale

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.