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Finding the Fourth Proportional to 433,779.48, 648,182.79 and 330,625.98

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Solution

The fourth proportional to 433,779.48, 648,182.79 and 330,625.98 is: 494,043.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,779.48 : 648,182.79 = 330,625.98 : x
  2. Step 2: Convert to fraction form
    433,779.48/648,182.79 = 330,625.98/x
  3. Step 3: Cross multiply
    433,779.48x = 648,182.79 × 330,625.98
  4. Step 4: Simplify right side
    433,779.48x = 214,306,070,162.88
  5. Step 5: Solve for x
    x = 214,306,070,162.88/433,779.48
  6. Step 6: Final answer
    x = 494,043.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.