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Finding the Fourth Proportional to 575,656.72, 794,548.67 and 392,198.88

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Solution

The fourth proportional to 575,656.72, 794,548.67 and 392,198.88 is: 541,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,656.72 : 794,548.67 = 392,198.88 : x
  2. Step 2: Convert to fraction form
    575,656.72/794,548.67 = 392,198.88/x
  3. Step 3: Cross multiply
    575,656.72x = 794,548.67 × 392,198.88
  4. Step 4: Simplify right side
    575,656.72x = 311,621,098,479.49
  5. Step 5: Solve for x
    x = 311,621,098,479.49/575,656.72
  6. Step 6: Final answer
    x = 541,331.47

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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.