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Finding the Fourth Proportional to 525,879.40, 787,911.90 and 244,820.20

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Solution

The fourth proportional to 525,879.40, 787,911.90 and 244,820.20 is: 366,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,879.40 : 787,911.90 = 244,820.20 : x
  2. Step 2: Convert to fraction form
    525,879.40/787,911.90 = 244,820.20/x
  3. Step 3: Cross multiply
    525,879.40x = 787,911.90 × 244,820.20
  4. Step 4: Simplify right side
    525,879.40x = 192,896,748,940.38
  5. Step 5: Solve for x
    x = 192,896,748,940.38/525,879.40
  6. Step 6: Final answer
    x = 366,807.96

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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.