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Finding the Fourth Proportional to 525,300.26, 786,687.21 and 299,977.76

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Solution

The fourth proportional to 525,300.26, 786,687.21 and 299,977.76 is: 449,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,300.26 : 786,687.21 = 299,977.76 : x
  2. Step 2: Convert to fraction form
    525,300.26/786,687.21 = 299,977.76/x
  3. Step 3: Cross multiply
    525,300.26x = 786,687.21 × 299,977.76
  4. Step 4: Simplify right side
    525,300.26x = 235,988,669,043.17
  5. Step 5: Solve for x
    x = 235,988,669,043.17/525,300.26
  6. Step 6: Final answer
    x = 449,245.30

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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.