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Finding the Fourth Proportional to 323,124.14, 484,679.28 and 86,466.80

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Solution

The fourth proportional to 323,124.14, 484,679.28 and 86,466.80 is: 129,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,124.14 : 484,679.28 = 86,466.80 : x
  2. Step 2: Convert to fraction form
    323,124.14/484,679.28 = 86,466.80/x
  3. Step 3: Cross multiply
    323,124.14x = 484,679.28 × 86,466.80
  4. Step 4: Simplify right side
    323,124.14x = 41,908,666,367.90
  5. Step 5: Solve for x
    x = 41,908,666,367.90/323,124.14
  6. Step 6: Final answer
    x = 129,698.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.