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Finding the Fourth Proportional to 454,988.61, 682,479.54 and 355,232.25

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Solution

The fourth proportional to 454,988.61, 682,479.54 and 355,232.25 is: 532,845.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,988.61 : 682,479.54 = 355,232.25 : x
  2. Step 2: Convert to fraction form
    454,988.61/682,479.54 = 355,232.25/x
  3. Step 3: Cross multiply
    454,988.61x = 682,479.54 × 355,232.25
  4. Step 4: Simplify right side
    454,988.61x = 242,438,742,573.17
  5. Step 5: Solve for x
    x = 242,438,742,573.17/454,988.61
  6. Step 6: Final answer
    x = 532,845.74

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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.