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Finding the Fourth Proportional to 354,885.48, 532,319.28 and 144,522.84

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Solution

The fourth proportional to 354,885.48, 532,319.28 and 144,522.84 is: 216,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,885.48 : 532,319.28 = 144,522.84 : x
  2. Step 2: Convert to fraction form
    354,885.48/532,319.28 = 144,522.84/x
  3. Step 3: Cross multiply
    354,885.48x = 532,319.28 × 144,522.84
  4. Step 4: Simplify right side
    354,885.48x = 76,932,294,132.36
  5. Step 5: Solve for x
    x = 76,932,294,132.36/354,885.48
  6. Step 6: Final answer
    x = 216,780.62

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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.