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Finding the Fourth Proportional to 692,530.58, 955,573.80 and 386,591.16

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Solution

The fourth proportional to 692,530.58, 955,573.80 and 386,591.16 is: 533,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,530.58 : 955,573.80 = 386,591.16 : x
  2. Step 2: Convert to fraction form
    692,530.58/955,573.80 = 386,591.16/x
  3. Step 3: Cross multiply
    692,530.58x = 955,573.80 × 386,591.16
  4. Step 4: Simplify right side
    692,530.58x = 369,416,383,807.61
  5. Step 5: Solve for x
    x = 369,416,383,807.61/692,530.58
  6. Step 6: Final answer
    x = 533,429.71

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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.