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Finding the Fourth Proportional to 439,230.69, 606,134.10 and 245,636.25

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Solution

The fourth proportional to 439,230.69, 606,134.10 and 245,636.25 is: 338,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,230.69 : 606,134.10 = 245,636.25 : x
  2. Step 2: Convert to fraction form
    439,230.69/606,134.10 = 245,636.25/x
  3. Step 3: Cross multiply
    439,230.69x = 606,134.10 × 245,636.25
  4. Step 4: Simplify right side
    439,230.69x = 148,888,507,935.22
  5. Step 5: Solve for x
    x = 148,888,507,935.22/439,230.69
  6. Step 6: Final answer
    x = 338,975.65

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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.