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Finding the Fourth Proportional to 289,793.10, 434,689.65 and 183,504.90

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Solution

The fourth proportional to 289,793.10, 434,689.65 and 183,504.90 is: 275,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,793.10 : 434,689.65 = 183,504.90 : x
  2. Step 2: Convert to fraction form
    289,793.10/434,689.65 = 183,504.90/x
  3. Step 3: Cross multiply
    289,793.10x = 434,689.65 × 183,504.90
  4. Step 4: Simplify right side
    289,793.10x = 79,767,680,754.29
  5. Step 5: Solve for x
    x = 79,767,680,754.29/289,793.10
  6. Step 6: Final answer
    x = 275,257.35

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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.