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Finding the Fourth Proportional to 435,490.53, 653,235.55 and 135,996.77

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Solution

The fourth proportional to 435,490.53, 653,235.55 and 135,996.77 is: 203,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,490.53 : 653,235.55 = 135,996.77 : x
  2. Step 2: Convert to fraction form
    435,490.53/653,235.55 = 135,996.77/x
  3. Step 3: Cross multiply
    435,490.53x = 653,235.55 × 135,996.77
  4. Step 4: Simplify right side
    435,490.53x = 88,837,926,142.27
  5. Step 5: Solve for x
    x = 88,837,926,142.27/435,490.53
  6. Step 6: Final answer
    x = 203,995.08

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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.