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Finding the Fourth Proportional to 431,555.12, 595,801.40 and 383,676.15

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Solution

The fourth proportional to 431,555.12, 595,801.40 and 383,676.15 is: 529,700.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,555.12 : 595,801.40 = 383,676.15 : x
  2. Step 2: Convert to fraction form
    431,555.12/595,801.40 = 383,676.15/x
  3. Step 3: Cross multiply
    431,555.12x = 595,801.40 × 383,676.15
  4. Step 4: Simplify right side
    431,555.12x = 228,594,785,398.23
  5. Step 5: Solve for x
    x = 228,594,785,398.23/431,555.12
  6. Step 6: Final answer
    x = 529,700.09

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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.