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Finding the Fourth Proportional to 572,738.01, 790,352.87 and 343,421.87

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Solution

The fourth proportional to 572,738.01, 790,352.87 and 343,421.87 is: 473,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,738.01 : 790,352.87 = 343,421.87 : x
  2. Step 2: Convert to fraction form
    572,738.01/790,352.87 = 343,421.87/x
  3. Step 3: Cross multiply
    572,738.01x = 790,352.87 × 343,421.87
  4. Step 4: Simplify right side
    572,738.01x = 271,424,460,575.27
  5. Step 5: Solve for x
    x = 271,424,460,575.27/572,738.01
  6. Step 6: Final answer
    x = 473,906.84

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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.