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Finding the Fourth Proportional to 434,825.20, 609,861.20 and 434,825.20

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Solution

The fourth proportional to 434,825.20, 609,861.20 and 434,825.20 is: 609,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,825.20 : 609,861.20 = 434,825.20 : x
  2. Step 2: Convert to fraction form
    434,825.20/609,861.20 = 434,825.20/x
  3. Step 3: Cross multiply
    434,825.20x = 609,861.20 × 434,825.20
  4. Step 4: Simplify right side
    434,825.20x = 265,183,018,262.24
  5. Step 5: Solve for x
    x = 265,183,018,262.24/434,825.20
  6. Step 6: Final answer
    x = 609,861.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.