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Finding the Fourth Proportional to 493,170.40, 740,047.20 and 359,714.80

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Solution

The fourth proportional to 493,170.40, 740,047.20 and 359,714.80 is: 539,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,170.40 : 740,047.20 = 359,714.80 : x
  2. Step 2: Convert to fraction form
    493,170.40/740,047.20 = 359,714.80/x
  3. Step 3: Cross multiply
    493,170.40x = 740,047.20 × 359,714.80
  4. Step 4: Simplify right side
    493,170.40x = 266,205,930,538.56
  5. Step 5: Solve for x
    x = 266,205,930,538.56/493,170.40
  6. Step 6: Final answer
    x = 539,784.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.