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Finding the Fourth Proportional to 574,720.75, 793,139.24 and 320,071.94

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Solution

The fourth proportional to 574,720.75, 793,139.24 and 320,071.94 is: 441,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,720.75 : 793,139.24 = 320,071.94 : x
  2. Step 2: Convert to fraction form
    574,720.75/793,139.24 = 320,071.94/x
  3. Step 3: Cross multiply
    574,720.75x = 793,139.24 × 320,071.94
  4. Step 4: Simplify right side
    574,720.75x = 253,861,615,045.68
  5. Step 5: Solve for x
    x = 253,861,615,045.68/574,720.75
  6. Step 6: Final answer
    x = 441,712.98

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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.