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Finding the Fourth Proportional to 435,697.05, 653,656.46 and 255,934.47

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Solution

The fourth proportional to 435,697.05, 653,656.46 and 255,934.47 is: 383,966.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,697.05 : 653,656.46 = 255,934.47 : x
  2. Step 2: Convert to fraction form
    435,697.05/653,656.46 = 255,934.47/x
  3. Step 3: Cross multiply
    435,697.05x = 653,656.46 × 255,934.47
  4. Step 4: Simplify right side
    435,697.05x = 167,293,220,823.72
  5. Step 5: Solve for x
    x = 167,293,220,823.72/435,697.05
  6. Step 6: Final answer
    x = 383,966.84

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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.