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Finding the Fourth Proportional to 606,914.70, 910,372.05 and 291,209.10

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Solution

The fourth proportional to 606,914.70, 910,372.05 and 291,209.10 is: 436,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,914.70 : 910,372.05 = 291,209.10 : x
  2. Step 2: Convert to fraction form
    606,914.70/910,372.05 = 291,209.10/x
  3. Step 3: Cross multiply
    606,914.70x = 910,372.05 × 291,209.10
  4. Step 4: Simplify right side
    606,914.70x = 265,108,625,345.66
  5. Step 5: Solve for x
    x = 265,108,625,345.66/606,914.70
  6. Step 6: Final answer
    x = 436,813.65

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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.