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Finding the Fourth Proportional to 565,367.38, 780,388.76 and 361,966.12

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Solution

The fourth proportional to 565,367.38, 780,388.76 and 361,966.12 is: 499,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,367.38 : 780,388.76 = 361,966.12 : x
  2. Step 2: Convert to fraction form
    565,367.38/780,388.76 = 361,966.12/x
  3. Step 3: Cross multiply
    565,367.38x = 780,388.76 × 361,966.12
  4. Step 4: Simplify right side
    565,367.38x = 282,474,290,502.76
  5. Step 5: Solve for x
    x = 282,474,290,502.76/565,367.38
  6. Step 6: Final answer
    x = 499,629.62

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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.