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Finding the Fourth Proportional to 522,428.32, 783,755.24 and 162,592.09

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Solution

The fourth proportional to 522,428.32, 783,755.24 and 162,592.09 is: 243,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,428.32 : 783,755.24 = 162,592.09 : x
  2. Step 2: Convert to fraction form
    522,428.32/783,755.24 = 162,592.09/x
  3. Step 3: Cross multiply
    522,428.32x = 783,755.24 × 162,592.09
  4. Step 4: Simplify right side
    522,428.32x = 127,432,402,520.05
  5. Step 5: Solve for x
    x = 127,432,402,520.05/522,428.32
  6. Step 6: Final answer
    x = 243,923.23

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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.