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Finding the Fourth Proportional to 470,770.61, 649,667.67 and 255,911.09

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Solution

The fourth proportional to 470,770.61, 649,667.67 and 255,911.09 is: 353,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,770.61 : 649,667.67 = 255,911.09 : x
  2. Step 2: Convert to fraction form
    470,770.61/649,667.67 = 255,911.09/x
  3. Step 3: Cross multiply
    470,770.61x = 649,667.67 × 255,911.09
  4. Step 4: Simplify right side
    470,770.61x = 166,257,161,567.46
  5. Step 5: Solve for x
    x = 166,257,161,567.46/470,770.61
  6. Step 6: Final answer
    x = 353,159.60

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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.