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Finding the Fourth Proportional to 651,889.40, 977,834.94 and 178,578.92

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Solution

The fourth proportional to 651,889.40, 977,834.94 and 178,578.92 is: 267,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,889.40 : 977,834.94 = 178,578.92 : x
  2. Step 2: Convert to fraction form
    651,889.40/977,834.94 = 178,578.92/x
  3. Step 3: Cross multiply
    651,889.40x = 977,834.94 × 178,578.92
  4. Step 4: Simplify right side
    651,889.40x = 174,620,707,523.47
  5. Step 5: Solve for x
    x = 174,620,707,523.47/651,889.40
  6. Step 6: Final answer
    x = 267,868.61

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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.