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Finding the Fourth Proportional to 456,599.28, 630,283.60 and 408,769.58

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Solution

The fourth proportional to 456,599.28, 630,283.60 and 408,769.58 is: 564,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,599.28 : 630,283.60 = 408,769.58 : x
  2. Step 2: Convert to fraction form
    456,599.28/630,283.60 = 408,769.58/x
  3. Step 3: Cross multiply
    456,599.28x = 630,283.60 × 408,769.58
  4. Step 4: Simplify right side
    456,599.28x = 257,640,762,452.89
  5. Step 5: Solve for x
    x = 257,640,762,452.89/456,599.28
  6. Step 6: Final answer
    x = 564,260.12

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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.