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Finding the Fourth Proportional to 629,938.42, 869,668.77 and 436,627.06

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Solution

The fourth proportional to 629,938.42, 869,668.77 and 436,627.06 is: 602,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,938.42 : 869,668.77 = 436,627.06 : x
  2. Step 2: Convert to fraction form
    629,938.42/869,668.77 = 436,627.06/x
  3. Step 3: Cross multiply
    629,938.42x = 869,668.77 × 436,627.06
  4. Step 4: Simplify right side
    629,938.42x = 379,720,918,218.92
  5. Step 5: Solve for x
    x = 379,720,918,218.92/629,938.42
  6. Step 6: Final answer
    x = 602,790.54

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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.