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Finding the Fourth Proportional to 470,630.05, 649,473.53 and 255,770.16

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Solution

The fourth proportional to 470,630.05, 649,473.53 and 255,770.16 is: 352,965.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,630.05 : 649,473.53 = 255,770.16 : x
  2. Step 2: Convert to fraction form
    470,630.05/649,473.53 = 255,770.16/x
  3. Step 3: Cross multiply
    470,630.05x = 649,473.53 × 255,770.16
  4. Step 4: Simplify right side
    470,630.05x = 166,115,944,969.49
  5. Step 5: Solve for x
    x = 166,115,944,969.49/470,630.05
  6. Step 6: Final answer
    x = 352,965.02

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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.