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Finding the Fourth Proportional to 692,670.60, 955,881.36 and 386,729.28

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Solution

The fourth proportional to 692,670.60, 955,881.36 and 386,729.28 is: 533,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,670.60 : 955,881.36 = 386,729.28 : x
  2. Step 2: Convert to fraction form
    692,670.60/955,881.36 = 386,729.28/x
  3. Step 3: Cross multiply
    692,670.60x = 955,881.36 × 386,729.28
  4. Step 4: Simplify right side
    692,670.60x = 369,667,310,118.22
  5. Step 5: Solve for x
    x = 369,667,310,118.22/692,670.60
  6. Step 6: Final answer
    x = 533,684.14

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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.