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Finding the Fourth Proportional to 535,575.33, 738,421.38 and 392,086.26

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Solution

The fourth proportional to 535,575.33, 738,421.38 and 392,086.26 is: 540,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,575.33 : 738,421.38 = 392,086.26 : x
  2. Step 2: Convert to fraction form
    535,575.33/738,421.38 = 392,086.26/x
  3. Step 3: Cross multiply
    535,575.33x = 738,421.38 × 392,086.26
  4. Step 4: Simplify right side
    535,575.33x = 289,524,877,188.24
  5. Step 5: Solve for x
    x = 289,524,877,188.24/535,575.33
  6. Step 6: Final answer
    x = 540,586.66

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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.