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Finding the Fourth Proportional to 567,793.56, 783,526.86 and 313,138.20

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Solution

The fourth proportional to 567,793.56, 783,526.86 and 313,138.20 is: 432,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,793.56 : 783,526.86 = 313,138.20 : x
  2. Step 2: Convert to fraction form
    567,793.56/783,526.86 = 313,138.20/x
  3. Step 3: Cross multiply
    567,793.56x = 783,526.86 × 313,138.20
  4. Step 4: Simplify right side
    567,793.56x = 245,352,190,592.05
  5. Step 5: Solve for x
    x = 245,352,190,592.05/567,793.56
  6. Step 6: Final answer
    x = 432,115.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.