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Finding the Fourth Proportional to 425,518.68, 587,173.73 and 253,402.41

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Solution

The fourth proportional to 425,518.68, 587,173.73 and 253,402.41 is: 349,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,518.68 : 587,173.73 = 253,402.41 : x
  2. Step 2: Convert to fraction form
    425,518.68/587,173.73 = 253,402.41/x
  3. Step 3: Cross multiply
    425,518.68x = 587,173.73 × 253,402.41
  4. Step 4: Simplify right side
    425,518.68x = 148,791,237,003.68
  5. Step 5: Solve for x
    x = 148,791,237,003.68/425,518.68
  6. Step 6: Final answer
    x = 349,670.28

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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.