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Finding the Fourth Proportional to 692,503.44, 955,650.78 and 386,562.12

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Solution

The fourth proportional to 692,503.44, 955,650.78 and 386,562.12 is: 533,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,503.44 : 955,650.78 = 386,562.12 : x
  2. Step 2: Convert to fraction form
    692,503.44/955,650.78 = 386,562.12/x
  3. Step 3: Cross multiply
    692,503.44x = 955,650.78 × 386,562.12
  4. Step 4: Simplify right side
    692,503.44x = 369,418,391,496.45
  5. Step 5: Solve for x
    x = 369,418,391,496.45/692,503.44
  6. Step 6: Final answer
    x = 533,453.51

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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.