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Finding the Fourth Proportional to 553,357.88, 762,025.91 and 480,727.61

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Solution

The fourth proportional to 553,357.88, 762,025.91 and 480,727.61 is: 662,007.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,357.88 : 762,025.91 = 480,727.61 : x
  2. Step 2: Convert to fraction form
    553,357.88/762,025.91 = 480,727.61/x
  3. Step 3: Cross multiply
    553,357.88x = 762,025.91 × 480,727.61
  4. Step 4: Simplify right side
    553,357.88x = 366,326,888,258.61
  5. Step 5: Solve for x
    x = 366,326,888,258.61/553,357.88
  6. Step 6: Final answer
    x = 662,007.18

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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.