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Finding the Fourth Proportional to 620,596.96, 930,876.84 and 171,345.24

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Solution

The fourth proportional to 620,596.96, 930,876.84 and 171,345.24 is: 257,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,596.96 : 930,876.84 = 171,345.24 : x
  2. Step 2: Convert to fraction form
    620,596.96/930,876.84 = 171,345.24/x
  3. Step 3: Cross multiply
    620,596.96x = 930,876.84 × 171,345.24
  4. Step 4: Simplify right side
    620,596.96x = 159,501,315,560.24
  5. Step 5: Solve for x
    x = 159,501,315,560.24/620,596.96
  6. Step 6: Final answer
    x = 257,012.72

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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.