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Finding the Fourth Proportional to 328,762.52, 453,525.12 and 199,666.65

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Solution

The fourth proportional to 328,762.52, 453,525.12 and 199,666.65 is: 275,438.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,762.52 : 453,525.12 = 199,666.65 : x
  2. Step 2: Convert to fraction form
    328,762.52/453,525.12 = 199,666.65/x
  3. Step 3: Cross multiply
    328,762.52x = 453,525.12 × 199,666.65
  4. Step 4: Simplify right side
    328,762.52x = 90,553,841,401.25
  5. Step 5: Solve for x
    x = 90,553,841,401.25/328,762.52
  6. Step 6: Final answer
    x = 275,438.46

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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.