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Finding the Fourth Proportional to 425,453.24, 587,190.30 and 323,312.24

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Solution

The fourth proportional to 425,453.24, 587,190.30 and 323,312.24 is: 446,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,453.24 : 587,190.30 = 323,312.24 : x
  2. Step 2: Convert to fraction form
    425,453.24/587,190.30 = 323,312.24/x
  3. Step 3: Cross multiply
    425,453.24x = 587,190.30 × 323,312.24
  4. Step 4: Simplify right side
    425,453.24x = 189,845,811,199.27
  5. Step 5: Solve for x
    x = 189,845,811,199.27/425,453.24
  6. Step 6: Final answer
    x = 446,220.16

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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.