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Finding the Fourth Proportional to 324,916.80, 486,500.40 and 324,916.80

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Solution

The fourth proportional to 324,916.80, 486,500.40 and 324,916.80 is: 486,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,916.80 : 486,500.40 = 324,916.80 : x
  2. Step 2: Convert to fraction form
    324,916.80/486,500.40 = 324,916.80/x
  3. Step 3: Cross multiply
    324,916.80x = 486,500.40 × 324,916.80
  4. Step 4: Simplify right side
    324,916.80x = 158,072,153,166.72
  5. Step 5: Solve for x
    x = 158,072,153,166.72/324,916.80
  6. Step 6: Final answer
    x = 486,500.40

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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.