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Finding the Fourth Proportional to 567,237.45, 782,783.94 and 312,588.84

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Solution

The fourth proportional to 567,237.45, 782,783.94 and 312,588.84 is: 431,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,237.45 : 782,783.94 = 312,588.84 : x
  2. Step 2: Convert to fraction form
    567,237.45/782,783.94 = 312,588.84/x
  3. Step 3: Cross multiply
    567,237.45x = 782,783.94 × 312,588.84
  4. Step 4: Simplify right side
    567,237.45x = 244,689,523,775.23
  5. Step 5: Solve for x
    x = 244,689,523,775.23/567,237.45
  6. Step 6: Final answer
    x = 431,370.54

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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.