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Finding the Fourth Proportional to 421,469.43, 581,627.49 and 230,482.77

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Solution

The fourth proportional to 421,469.43, 581,627.49 and 230,482.77 is: 318,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,469.43 : 581,627.49 = 230,482.77 : x
  2. Step 2: Convert to fraction form
    421,469.43/581,627.49 = 230,482.77/x
  3. Step 3: Cross multiply
    421,469.43x = 581,627.49 × 230,482.77
  4. Step 4: Simplify right side
    421,469.43x = 134,055,111,957.93
  5. Step 5: Solve for x
    x = 134,055,111,957.93/421,469.43
  6. Step 6: Final answer
    x = 318,066.04

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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.