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Finding the Fourth Proportional to 704,779.50, 972,596.21 and 382,489.52

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Solution

The fourth proportional to 704,779.50, 972,596.21 and 382,489.52 is: 527,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,779.50 : 972,596.21 = 382,489.52 : x
  2. Step 2: Convert to fraction form
    704,779.50/972,596.21 = 382,489.52/x
  3. Step 3: Cross multiply
    704,779.50x = 972,596.21 × 382,489.52
  4. Step 4: Simplify right side
    704,779.50x = 372,007,857,516.72
  5. Step 5: Solve for x
    x = 372,007,857,516.72/704,779.50
  6. Step 6: Final answer
    x = 527,835.81

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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.