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Finding the Fourth Proportional to 370,640.25, 511,538.45 and 234,686.84

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Solution

The fourth proportional to 370,640.25, 511,538.45 and 234,686.84 is: 323,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,640.25 : 511,538.45 = 234,686.84 : x
  2. Step 2: Convert to fraction form
    370,640.25/511,538.45 = 234,686.84/x
  3. Step 3: Cross multiply
    370,640.25x = 511,538.45 × 234,686.84
  4. Step 4: Simplify right side
    370,640.25x = 120,051,338,637.87
  5. Step 5: Solve for x
    x = 120,051,338,637.87/370,640.25
  6. Step 6: Final answer
    x = 323,902.59

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1.5x scale

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.