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Finding the Fourth Proportional to 657,589.58, 907,404.35 and 381,893.63

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Solution

The fourth proportional to 657,589.58, 907,404.35 and 381,893.63 is: 526,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,589.58 : 907,404.35 = 381,893.63 : x
  2. Step 2: Convert to fraction form
    657,589.58/907,404.35 = 381,893.63/x
  3. Step 3: Cross multiply
    657,589.58x = 907,404.35 × 381,893.63
  4. Step 4: Simplify right side
    657,589.58x = 346,531,934,652.80
  5. Step 5: Solve for x
    x = 346,531,934,652.80/657,589.58
  6. Step 6: Final answer
    x = 526,972.97

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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.