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Finding the Fourth Proportional to 451,697.58, 623,333.34 and 279,569.88

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Solution

The fourth proportional to 451,697.58, 623,333.34 and 279,569.88 is: 385,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,697.58 : 623,333.34 = 279,569.88 : x
  2. Step 2: Convert to fraction form
    451,697.58/623,333.34 = 279,569.88/x
  3. Step 3: Cross multiply
    451,697.58x = 623,333.34 × 279,569.88
  4. Step 4: Simplify right side
    451,697.58x = 174,265,227,063.80
  5. Step 5: Solve for x
    x = 174,265,227,063.80/451,697.58
  6. Step 6: Final answer
    x = 385,800.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.