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Finding the Fourth Proportional to 294,516.80, 441,775.20 and 144,780.20

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Solution

The fourth proportional to 294,516.80, 441,775.20 and 144,780.20 is: 217,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,516.80 : 441,775.20 = 144,780.20 : x
  2. Step 2: Convert to fraction form
    294,516.80/441,775.20 = 144,780.20/x
  3. Step 3: Cross multiply
    294,516.80x = 441,775.20 × 144,780.20
  4. Step 4: Simplify right side
    294,516.80x = 63,960,301,811.04
  5. Step 5: Solve for x
    x = 63,960,301,811.04/294,516.80
  6. Step 6: Final answer
    x = 217,170.30

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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.