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Finding the Fourth Proportional to 692,228, 955,272.73 and 386,301.12

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Solution

The fourth proportional to 692,228, 955,272.73 and 386,301.12 is: 533,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,228 : 955,272.73 = 386,301.12 : x
  2. Step 2: Convert to fraction form
    692,228/955,272.73 = 386,301.12/x
  3. Step 3: Cross multiply
    692,228x = 955,272.73 × 386,301.12
  4. Step 4: Simplify right side
    692,228x = 369,022,925,504.46
  5. Step 5: Solve for x
    x = 369,022,925,504.46/692,228
  6. Step 6: Final answer
    x = 533,094.48

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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.