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Finding the Fourth Proportional to 316,452.92, 474,345.66 and 216,586.40

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Solution

The fourth proportional to 316,452.92, 474,345.66 and 216,586.40 is: 324,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,452.92 : 474,345.66 = 216,586.40 : x
  2. Step 2: Convert to fraction form
    316,452.92/474,345.66 = 216,586.40/x
  3. Step 3: Cross multiply
    316,452.92x = 474,345.66 × 216,586.40
  4. Step 4: Simplify right side
    316,452.92x = 102,736,818,855.02
  5. Step 5: Solve for x
    x = 102,736,818,855.02/316,452.92
  6. Step 6: Final answer
    x = 324,651.20

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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.