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Finding the Fourth Proportional to 606,706.20, 910,059.30 and 291,778.20

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Solution

The fourth proportional to 606,706.20, 910,059.30 and 291,778.20 is: 437,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,706.20 : 910,059.30 = 291,778.20 : x
  2. Step 2: Convert to fraction form
    606,706.20/910,059.30 = 291,778.20/x
  3. Step 3: Cross multiply
    606,706.20x = 910,059.30 × 291,778.20
  4. Step 4: Simplify right side
    606,706.20x = 265,535,464,447.26
  5. Step 5: Solve for x
    x = 265,535,464,447.26/606,706.20
  6. Step 6: Final answer
    x = 437,667.30

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Double scale
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Similar ratio
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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.