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Finding the Fourth Proportional to 606,613.86, 837,395.55 and 391,858.62

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Solution

The fourth proportional to 606,613.86, 837,395.55 and 391,858.62 is: 540,938.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,613.86 : 837,395.55 = 391,858.62 : x
  2. Step 2: Convert to fraction form
    606,613.86/837,395.55 = 391,858.62/x
  3. Step 3: Cross multiply
    606,613.86x = 837,395.55 × 391,858.62
  4. Step 4: Simplify right side
    606,613.86x = 328,140,664,617.14
  5. Step 5: Solve for x
    x = 328,140,664,617.14/606,613.86
  6. Step 6: Final answer
    x = 540,938.29

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Double scale
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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.