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Finding the Fourth Proportional to 387,167.34, 534,416.22 and 250,960.98

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Solution

The fourth proportional to 387,167.34, 534,416.22 and 250,960.98 is: 346,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,167.34 : 534,416.22 = 250,960.98 : x
  2. Step 2: Convert to fraction form
    387,167.34/534,416.22 = 250,960.98/x
  3. Step 3: Cross multiply
    387,167.34x = 534,416.22 × 250,960.98
  4. Step 4: Simplify right side
    387,167.34x = 134,117,618,299.10
  5. Step 5: Solve for x
    x = 134,117,618,299.10/387,167.34
  6. Step 6: Final answer
    x = 346,407.37

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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.