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Finding the Fourth Proportional to 607,924.28, 911,904.86 and 208,559.24

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Solution

The fourth proportional to 607,924.28, 911,904.86 and 208,559.24 is: 312,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,924.28 : 911,904.86 = 208,559.24 : x
  2. Step 2: Convert to fraction form
    607,924.28/911,904.86 = 208,559.24/x
  3. Step 3: Cross multiply
    607,924.28x = 911,904.86 × 208,559.24
  4. Step 4: Simplify right side
    607,924.28x = 190,186,178,951.59
  5. Step 5: Solve for x
    x = 190,186,178,951.59/607,924.28
  6. Step 6: Final answer
    x = 312,845.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.