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Finding the Fourth Proportional to 527,153.80, 790,779.24 and 172,169.68

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Solution

The fourth proportional to 527,153.80, 790,779.24 and 172,169.68 is: 258,270.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,153.80 : 790,779.24 = 172,169.68 : x
  2. Step 2: Convert to fraction form
    527,153.80/790,779.24 = 172,169.68/x
  3. Step 3: Cross multiply
    527,153.80x = 790,779.24 × 172,169.68
  4. Step 4: Simplify right side
    527,153.80x = 136,148,208,701.44
  5. Step 5: Solve for x
    x = 136,148,208,701.44/527,153.80
  6. Step 6: Final answer
    x = 258,270.37

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1.5x scale

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.