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Finding the Fourth Proportional to 525,000.60, 786,626.10 and 493,507.80

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Solution

The fourth proportional to 525,000.60, 786,626.10 and 493,507.80 is: 739,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,000.60 : 786,626.10 = 493,507.80 : x
  2. Step 2: Convert to fraction form
    525,000.60/786,626.10 = 493,507.80/x
  3. Step 3: Cross multiply
    525,000.60x = 786,626.10 × 493,507.80
  4. Step 4: Simplify right side
    525,000.60x = 388,206,116,033.58
  5. Step 5: Solve for x
    x = 388,206,116,033.58/525,000.60
  6. Step 6: Final answer
    x = 739,439.38

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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.