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Finding the Fourth Proportional to 404,217.80, 606,326.70 and 262,500.20

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Solution

The fourth proportional to 404,217.80, 606,326.70 and 262,500.20 is: 393,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,217.80 : 606,326.70 = 262,500.20 : x
  2. Step 2: Convert to fraction form
    404,217.80/606,326.70 = 262,500.20/x
  3. Step 3: Cross multiply
    404,217.80x = 606,326.70 × 262,500.20
  4. Step 4: Simplify right side
    404,217.80x = 159,160,880,015.34
  5. Step 5: Solve for x
    x = 159,160,880,015.34/404,217.80
  6. Step 6: Final answer
    x = 393,750.30

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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.