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Finding the Fourth Proportional to 623,785.73, 860,829.46 and 344,391.92

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Solution

The fourth proportional to 623,785.73, 860,829.46 and 344,391.92 is: 475,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,785.73 : 860,829.46 = 344,391.92 : x
  2. Step 2: Convert to fraction form
    623,785.73/860,829.46 = 344,391.92/x
  3. Step 3: Cross multiply
    623,785.73x = 860,829.46 × 344,391.92
  4. Step 4: Simplify right side
    623,785.73x = 296,462,708,584.95
  5. Step 5: Solve for x
    x = 296,462,708,584.95/623,785.73
  6. Step 6: Final answer
    x = 475,263.70

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1.5x scale

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.