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Finding the Fourth Proportional to 456,576.92, 630,329.54 and 275,334.76

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Solution

The fourth proportional to 456,576.92, 630,329.54 and 275,334.76 is: 380,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,576.92 : 630,329.54 = 275,334.76 : x
  2. Step 2: Convert to fraction form
    456,576.92/630,329.54 = 275,334.76/x
  3. Step 3: Cross multiply
    456,576.92x = 630,329.54 × 275,334.76
  4. Step 4: Simplify right side
    456,576.92x = 173,551,632,616.81
  5. Step 5: Solve for x
    x = 173,551,632,616.81/456,576.92
  6. Step 6: Final answer
    x = 380,114.77

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Double scale
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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.