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Finding the Fourth Proportional to 621,900.78, 932,880.33 and 201,209.58

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Solution

The fourth proportional to 621,900.78, 932,880.33 and 201,209.58 is: 301,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,900.78 : 932,880.33 = 201,209.58 : x
  2. Step 2: Convert to fraction form
    621,900.78/932,880.33 = 201,209.58/x
  3. Step 3: Cross multiply
    621,900.78x = 932,880.33 × 201,209.58
  4. Step 4: Simplify right side
    621,900.78x = 187,704,459,389.56
  5. Step 5: Solve for x
    x = 187,704,459,389.56/621,900.78
  6. Step 6: Final answer
    x = 301,823.80

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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.