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Finding the Fourth Proportional to 692,113.64, 955,119.15 and 386,184.47

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Solution

The fourth proportional to 692,113.64, 955,119.15 and 386,184.47 is: 532,935.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,113.64 : 955,119.15 = 386,184.47 : x
  2. Step 2: Convert to fraction form
    692,113.64/955,119.15 = 386,184.47/x
  3. Step 3: Cross multiply
    692,113.64x = 955,119.15 × 386,184.47
  4. Step 4: Simplify right side
    692,113.64x = 368,852,177,954.01
  5. Step 5: Solve for x
    x = 368,852,177,954.01/692,113.64
  6. Step 6: Final answer
    x = 532,935.86

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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.