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Finding the Fourth Proportional to 692,662.64, 955,865.07 and 386,743.73

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Solution

The fourth proportional to 692,662.64, 955,865.07 and 386,743.73 is: 533,701.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,662.64 : 955,865.07 = 386,743.73 : x
  2. Step 2: Convert to fraction form
    692,662.64/955,865.07 = 386,743.73/x
  3. Step 3: Cross multiply
    692,662.64x = 955,865.07 × 386,743.73
  4. Step 4: Simplify right side
    692,662.64x = 369,674,817,769.19
  5. Step 5: Solve for x
    x = 369,674,817,769.19/692,662.64
  6. Step 6: Final answer
    x = 533,701.11

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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.