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Finding the Fourth Proportional to 326,207.88, 450,368.73 and 217,465.38

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Solution

The fourth proportional to 326,207.88, 450,368.73 and 217,465.38 is: 300,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,207.88 : 450,368.73 = 217,465.38 : x
  2. Step 2: Convert to fraction form
    326,207.88/450,368.73 = 217,465.38/x
  3. Step 3: Cross multiply
    326,207.88x = 450,368.73 × 217,465.38
  4. Step 4: Simplify right side
    326,207.88x = 97,939,607,009.57
  5. Step 5: Solve for x
    x = 97,939,607,009.57/326,207.88
  6. Step 6: Final answer
    x = 300,236.79

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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.