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Finding the Fourth Proportional to 575,649.23, 794,538.32 and 392,191.38

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Solution

The fourth proportional to 575,649.23, 794,538.32 and 392,191.38 is: 541,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,649.23 : 794,538.32 = 392,191.38 : x
  2. Step 2: Convert to fraction form
    575,649.23/794,538.32 = 392,191.38/x
  3. Step 3: Cross multiply
    575,649.23x = 794,538.32 × 392,191.38
  4. Step 4: Simplify right side
    575,649.23x = 311,611,078,222.73
  5. Step 5: Solve for x
    x = 311,611,078,222.73/575,649.23
  6. Step 6: Final answer
    x = 541,321.11

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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.