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Finding the Fourth Proportional to 432,396.40, 595,386 and 391,846.24

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Solution

The fourth proportional to 432,396.40, 595,386 and 391,846.24 is: 539,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,396.40 : 595,386 = 391,846.24 : x
  2. Step 2: Convert to fraction form
    432,396.40/595,386 = 391,846.24/x
  3. Step 3: Cross multiply
    432,396.40x = 595,386 × 391,846.24
  4. Step 4: Simplify right side
    432,396.40x = 233,299,765,448.64
  5. Step 5: Solve for x
    x = 233,299,765,448.64/432,396.40
  6. Step 6: Final answer
    x = 539,550.67

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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.