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Finding the Fourth Proportional to 421,469.32, 581,627.64 and 230,482.84

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Solution

The fourth proportional to 421,469.32, 581,627.64 and 230,482.84 is: 318,066.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,469.32 : 581,627.64 = 230,482.84 : x
  2. Step 2: Convert to fraction form
    421,469.32/581,627.64 = 230,482.84/x
  3. Step 3: Cross multiply
    421,469.32x = 581,627.64 × 230,482.84
  4. Step 4: Simplify right side
    421,469.32x = 134,055,190,289.70
  5. Step 5: Solve for x
    x = 134,055,190,289.70/421,469.32
  6. Step 6: Final answer
    x = 318,066.31

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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.