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Finding the Fourth Proportional to 692,790.96, 955,967.21 and 386,884.34

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Solution

The fourth proportional to 692,790.96, 955,967.21 and 386,884.34 is: 533,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,790.96 : 955,967.21 = 386,884.34 : x
  2. Step 2: Convert to fraction form
    692,790.96/955,967.21 = 386,884.34/x
  3. Step 3: Cross multiply
    692,790.96x = 955,967.21 × 386,884.34
  4. Step 4: Simplify right side
    692,790.96x = 369,848,738,322.66
  5. Step 5: Solve for x
    x = 369,848,738,322.66/692,790.96
  6. Step 6: Final answer
    x = 533,853.30

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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.