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Finding the Fourth Proportional to 303,614.10, 455,421.15 and 294,866.10

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Solution

The fourth proportional to 303,614.10, 455,421.15 and 294,866.10 is: 442,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,614.10 : 455,421.15 = 294,866.10 : x
  2. Step 2: Convert to fraction form
    303,614.10/455,421.15 = 294,866.10/x
  3. Step 3: Cross multiply
    303,614.10x = 455,421.15 × 294,866.10
  4. Step 4: Simplify right side
    303,614.10x = 134,288,258,358.02
  5. Step 5: Solve for x
    x = 134,288,258,358.02/303,614.10
  6. Step 6: Final answer
    x = 442,299.15

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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.