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Finding the Fourth Proportional to 569,803.55, 786,276.05 and 315,149.27

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Solution

The fourth proportional to 569,803.55, 786,276.05 and 315,149.27 is: 434,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,803.55 : 786,276.05 = 315,149.27 : x
  2. Step 2: Convert to fraction form
    569,803.55/786,276.05 = 315,149.27/x
  3. Step 3: Cross multiply
    569,803.55x = 786,276.05 × 315,149.27
  4. Step 4: Simplify right side
    569,803.55x = 247,794,317,668.86
  5. Step 5: Solve for x
    x = 247,794,317,668.86/569,803.55
  6. Step 6: Final answer
    x = 434,876.76

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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.