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Finding the Fourth Proportional to 257,905.04, 383,737.29 and 251,476.88

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Solution

The fourth proportional to 257,905.04, 383,737.29 and 251,476.88 is: 374,172.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,905.04 : 383,737.29 = 251,476.88 : x
  2. Step 2: Convert to fraction form
    257,905.04/383,737.29 = 251,476.88/x
  3. Step 3: Cross multiply
    257,905.04x = 383,737.29 × 251,476.88
  4. Step 4: Simplify right side
    257,905.04x = 96,501,056,428.86
  5. Step 5: Solve for x
    x = 96,501,056,428.86/257,905.04
  6. Step 6: Final answer
    x = 374,172.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.