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Finding the Fourth Proportional to 510,601.79, 704,624.75 and 281,154.41

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Solution

The fourth proportional to 510,601.79, 704,624.75 and 281,154.41 is: 387,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,601.79 : 704,624.75 = 281,154.41 : x
  2. Step 2: Convert to fraction form
    510,601.79/704,624.75 = 281,154.41/x
  3. Step 3: Cross multiply
    510,601.79x = 704,624.75 × 281,154.41
  4. Step 4: Simplify right side
    510,601.79x = 198,108,354,625.42
  5. Step 5: Solve for x
    x = 198,108,354,625.42/510,601.79
  6. Step 6: Final answer
    x = 387,989.93

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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.