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Finding the Fourth Proportional to 566,885.78, 782,302.37 and 312,236.97

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Solution

The fourth proportional to 566,885.78, 782,302.37 and 312,236.97 is: 430,887.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,885.78 : 782,302.37 = 312,236.97 : x
  2. Step 2: Convert to fraction form
    566,885.78/782,302.37 = 312,236.97/x
  3. Step 3: Cross multiply
    566,885.78x = 782,302.37 × 312,236.97
  4. Step 4: Simplify right side
    566,885.78x = 244,263,717,137.80
  5. Step 5: Solve for x
    x = 244,263,717,137.80/566,885.78
  6. Step 6: Final answer
    x = 430,887.01

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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.