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Finding the Fourth Proportional to 572,371.62, 789,833.30 and 317,702.76

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Solution

The fourth proportional to 572,371.62, 789,833.30 and 317,702.76 is: 438,407.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,371.62 : 789,833.30 = 317,702.76 : x
  2. Step 2: Convert to fraction form
    572,371.62/789,833.30 = 317,702.76/x
  3. Step 3: Cross multiply
    572,371.62x = 789,833.30 × 317,702.76
  4. Step 4: Simplify right side
    572,371.62x = 250,932,219,349.91
  5. Step 5: Solve for x
    x = 250,932,219,349.91/572,371.62
  6. Step 6: Final answer
    x = 438,407.86

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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.