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Finding the Fourth Proportional to 456,959.72, 630,405.88 and 275,570.85

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Solution

The fourth proportional to 456,959.72, 630,405.88 and 275,570.85 is: 380,168.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,959.72 : 630,405.88 = 275,570.85 : x
  2. Step 2: Convert to fraction form
    456,959.72/630,405.88 = 275,570.85/x
  3. Step 3: Cross multiply
    456,959.72x = 630,405.88 × 275,570.85
  4. Step 4: Simplify right side
    456,959.72x = 173,721,482,620.58
  5. Step 5: Solve for x
    x = 173,721,482,620.58/456,959.72
  6. Step 6: Final answer
    x = 380,168.05

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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.