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Finding the Fourth Proportional to 622,934.34, 859,657.42 and 368,283.30

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Solution

The fourth proportional to 622,934.34, 859,657.42 and 368,283.30 is: 508,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,934.34 : 859,657.42 = 368,283.30 : x
  2. Step 2: Convert to fraction form
    622,934.34/859,657.42 = 368,283.30/x
  3. Step 3: Cross multiply
    622,934.34x = 859,657.42 × 368,283.30
  4. Step 4: Simplify right side
    622,934.34x = 316,597,471,507.09
  5. Step 5: Solve for x
    x = 316,597,471,507.09/622,934.34
  6. Step 6: Final answer
    x = 508,235.70

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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.