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Finding the Fourth Proportional to 572,854.36, 790,451.22 and 331,090.32

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Solution

The fourth proportional to 572,854.36, 790,451.22 and 331,090.32 is: 456,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,854.36 : 790,451.22 = 331,090.32 : x
  2. Step 2: Convert to fraction form
    572,854.36/790,451.22 = 331,090.32/x
  3. Step 3: Cross multiply
    572,854.36x = 790,451.22 × 331,090.32
  4. Step 4: Simplify right side
    572,854.36x = 261,710,747,374.19
  5. Step 5: Solve for x
    x = 261,710,747,374.19/572,854.36
  6. Step 6: Final answer
    x = 456,853.90

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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.