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Finding the Fourth Proportional to 566,885.64, 782,302.15 and 312,236.83

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Solution

The fourth proportional to 566,885.64, 782,302.15 and 312,236.83 is: 430,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,885.64 : 782,302.15 = 312,236.83 : x
  2. Step 2: Convert to fraction form
    566,885.64/782,302.15 = 312,236.83/x
  3. Step 3: Cross multiply
    566,885.64x = 782,302.15 × 312,236.83
  4. Step 4: Simplify right side
    566,885.64x = 244,263,540,385.91
  5. Step 5: Solve for x
    x = 244,263,540,385.91/566,885.64
  6. Step 6: Final answer
    x = 430,886.80

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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.