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Finding the Fourth Proportional to 461,036.64, 636,275.93 and 279,734.34

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Solution

The fourth proportional to 461,036.64, 636,275.93 and 279,734.34 is: 386,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,036.64 : 636,275.93 = 279,734.34 : x
  2. Step 2: Convert to fraction form
    461,036.64/636,275.93 = 279,734.34/x
  3. Step 3: Cross multiply
    461,036.64x = 636,275.93 × 279,734.34
  4. Step 4: Simplify right side
    461,036.64x = 177,988,228,323.80
  5. Step 5: Solve for x
    x = 177,988,228,323.80/461,036.64
  6. Step 6: Final answer
    x = 386,060.91

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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.