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Finding the Fourth Proportional to 426,478.45, 588,060.46 and 348,711.48

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Solution

The fourth proportional to 426,478.45, 588,060.46 and 348,711.48 is: 480,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,478.45 : 588,060.46 = 348,711.48 : x
  2. Step 2: Convert to fraction form
    426,478.45/588,060.46 = 348,711.48/x
  3. Step 3: Cross multiply
    426,478.45x = 588,060.46 × 348,711.48
  4. Step 4: Simplify right side
    426,478.45x = 205,063,433,336.08
  5. Step 5: Solve for x
    x = 205,063,433,336.08/426,478.45
  6. Step 6: Final answer
    x = 480,829.53

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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.