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Finding the Fourth Proportional to 606,748.72, 837,581.24 and 391,992.88

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Solution

The fourth proportional to 606,748.72, 837,581.24 and 391,992.88 is: 541,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,748.72 : 837,581.24 = 391,992.88 : x
  2. Step 2: Convert to fraction form
    606,748.72/837,581.24 = 391,992.88/x
  3. Step 3: Cross multiply
    606,748.72x = 837,581.24 × 391,992.88
  4. Step 4: Simplify right side
    606,748.72x = 328,325,882,501.57
  5. Step 5: Solve for x
    x = 328,325,882,501.57/606,748.72
  6. Step 6: Final answer
    x = 541,123.32

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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.