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Finding the Fourth Proportional to 525,191.65, 724,033.69 and 443,857.12

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Solution

The fourth proportional to 525,191.65, 724,033.69 and 443,857.12 is: 611,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,191.65 : 724,033.69 = 443,857.12 : x
  2. Step 2: Convert to fraction form
    525,191.65/724,033.69 = 443,857.12/x
  3. Step 3: Cross multiply
    525,191.65x = 724,033.69 × 443,857.12
  4. Step 4: Simplify right side
    525,191.65x = 321,367,505,506.65
  5. Step 5: Solve for x
    x = 321,367,505,506.65/525,191.65
  6. Step 6: Final answer
    x = 611,905.21

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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.