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Finding the Fourth Proportional to 653,147.46, 979,783.02 and 253,819.03

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Solution

The fourth proportional to 653,147.46, 979,783.02 and 253,819.03 is: 380,752.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,147.46 : 979,783.02 = 253,819.03 : x
  2. Step 2: Convert to fraction form
    653,147.46/979,783.02 = 253,819.03/x
  3. Step 3: Cross multiply
    653,147.46x = 979,783.02 × 253,819.03
  4. Step 4: Simplify right side
    653,147.46x = 248,687,575,746.87
  5. Step 5: Solve for x
    x = 248,687,575,746.87/653,147.46
  6. Step 6: Final answer
    x = 380,752.57

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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.