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Finding the Fourth Proportional to 692,336.66, 955,472.63 and 386,473.16

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Solution

The fourth proportional to 692,336.66, 955,472.63 and 386,473.16 is: 533,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,336.66 : 955,472.63 = 386,473.16 : x
  2. Step 2: Convert to fraction form
    692,336.66/955,472.63 = 386,473.16/x
  3. Step 3: Cross multiply
    692,336.66x = 955,472.63 × 386,473.16
  4. Step 4: Simplify right side
    692,336.66x = 369,264,527,065.93
  5. Step 5: Solve for x
    x = 369,264,527,065.93/692,336.66
  6. Step 6: Final answer
    x = 533,359.78

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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.