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Finding the Fourth Proportional to 443,017.60, 664,628.16 and 127,477.12

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Solution

The fourth proportional to 443,017.60, 664,628.16 and 127,477.12 is: 191,244.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,017.60 : 664,628.16 = 127,477.12 : x
  2. Step 2: Convert to fraction form
    443,017.60/664,628.16 = 127,477.12/x
  3. Step 3: Cross multiply
    443,017.60x = 664,628.16 × 127,477.12
  4. Step 4: Simplify right side
    443,017.60x = 84,724,883,707.70
  5. Step 5: Solve for x
    x = 84,724,883,707.70/443,017.60
  6. Step 6: Final answer
    x = 191,244.96

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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.