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Finding the Fourth Proportional to 606,905.70, 910,358.55 and 186,180.90

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Solution

The fourth proportional to 606,905.70, 910,358.55 and 186,180.90 is: 279,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,905.70 : 910,358.55 = 186,180.90 : x
  2. Step 2: Convert to fraction form
    606,905.70/910,358.55 = 186,180.90/x
  3. Step 3: Cross multiply
    606,905.70x = 910,358.55 × 186,180.90
  4. Step 4: Simplify right side
    606,905.70x = 169,491,374,161.70
  5. Step 5: Solve for x
    x = 169,491,374,161.70/606,905.70
  6. Step 6: Final answer
    x = 279,271.35

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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.