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Finding the Fourth Proportional to 543,559.56, 749,991.42 and 328,695.12

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Solution

The fourth proportional to 543,559.56, 749,991.42 and 328,695.12 is: 453,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,559.56 : 749,991.42 = 328,695.12 : x
  2. Step 2: Convert to fraction form
    543,559.56/749,991.42 = 328,695.12/x
  3. Step 3: Cross multiply
    543,559.56x = 749,991.42 × 328,695.12
  4. Step 4: Simplify right side
    543,559.56x = 246,518,519,795.87
  5. Step 5: Solve for x
    x = 246,518,519,795.87/543,559.56
  6. Step 6: Final answer
    x = 453,526.23

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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.