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Finding the Fourth Proportional to 330,452.64, 492,926.40 and 298,562.40

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Solution

The fourth proportional to 330,452.64, 492,926.40 and 298,562.40 is: 445,356.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,452.64 : 492,926.40 = 298,562.40 : x
  2. Step 2: Convert to fraction form
    330,452.64/492,926.40 = 298,562.40/x
  3. Step 3: Cross multiply
    330,452.64x = 492,926.40 × 298,562.40
  4. Step 4: Simplify right side
    330,452.64x = 147,169,289,007.36
  5. Step 5: Solve for x
    x = 147,169,289,007.36/330,452.64
  6. Step 6: Final answer
    x = 445,356.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.