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Finding the Fourth Proportional to 329,663.80, 494,447.10 and 93,030.40

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Solution

The fourth proportional to 329,663.80, 494,447.10 and 93,030.40 is: 139,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,663.80 : 494,447.10 = 93,030.40 : x
  2. Step 2: Convert to fraction form
    329,663.80/494,447.10 = 93,030.40/x
  3. Step 3: Cross multiply
    329,663.80x = 494,447.10 × 93,030.40
  4. Step 4: Simplify right side
    329,663.80x = 45,998,611,491.84
  5. Step 5: Solve for x
    x = 45,998,611,491.84/329,663.80
  6. Step 6: Final answer
    x = 139,531.89

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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.