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Finding the Fourth Proportional to 323,506.80, 485,260.20 and 316,594.80

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Solution

The fourth proportional to 323,506.80, 485,260.20 and 316,594.80 is: 474,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,506.80 : 485,260.20 = 316,594.80 : x
  2. Step 2: Convert to fraction form
    323,506.80/485,260.20 = 316,594.80/x
  3. Step 3: Cross multiply
    323,506.80x = 485,260.20 × 316,594.80
  4. Step 4: Simplify right side
    323,506.80x = 153,630,855,966.96
  5. Step 5: Solve for x
    x = 153,630,855,966.96/323,506.80
  6. Step 6: Final answer
    x = 474,892.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.