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Finding the Fourth Proportional to 326,307.76, 450,462.92 and 218,838.48

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Solution

The fourth proportional to 326,307.76, 450,462.92 and 218,838.48 is: 302,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,307.76 : 450,462.92 = 218,838.48 : x
  2. Step 2: Convert to fraction form
    326,307.76/450,462.92 = 218,838.48/x
  3. Step 3: Cross multiply
    326,307.76x = 450,462.92 × 218,838.48
  4. Step 4: Simplify right side
    326,307.76x = 98,578,620,709.16
  5. Step 5: Solve for x
    x = 98,578,620,709.16/326,307.76
  6. Step 6: Final answer
    x = 302,103.21

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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.