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Finding the Fourth Proportional to 415,465.53, 623,198.09 and 99,922.34

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Solution

The fourth proportional to 415,465.53, 623,198.09 and 99,922.34 is: 149,883.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,465.53 : 623,198.09 = 99,922.34 : x
  2. Step 2: Convert to fraction form
    415,465.53/623,198.09 = 99,922.34/x
  3. Step 3: Cross multiply
    415,465.53x = 623,198.09 × 99,922.34
  4. Step 4: Simplify right side
    415,465.53x = 62,271,411,436.33
  5. Step 5: Solve for x
    x = 62,271,411,436.33/415,465.53
  6. Step 6: Final answer
    x = 149,883.46

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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.