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Finding the Fourth Proportional to 535,361.68, 739,666.92 and 455,631.76

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Solution

The fourth proportional to 535,361.68, 739,666.92 and 455,631.76 is: 629,510.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,361.68 : 739,666.92 = 455,631.76 : x
  2. Step 2: Convert to fraction form
    535,361.68/739,666.92 = 455,631.76/x
  3. Step 3: Cross multiply
    535,361.68x = 739,666.92 × 455,631.76
  4. Step 4: Simplify right side
    535,361.68x = 337,015,740,573.38
  5. Step 5: Solve for x
    x = 337,015,740,573.38/535,361.68
  6. Step 6: Final answer
    x = 629,510.39

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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.