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Finding the Fourth Proportional to 633,511.62, 874,246.20 and 347,041.89

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Solution

The fourth proportional to 633,511.62, 874,246.20 and 347,041.89 is: 478,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,511.62 : 874,246.20 = 347,041.89 : x
  2. Step 2: Convert to fraction form
    633,511.62/874,246.20 = 347,041.89/x
  3. Step 3: Cross multiply
    633,511.62x = 874,246.20 × 347,041.89
  4. Step 4: Simplify right side
    633,511.62x = 303,400,053,573.32
  5. Step 5: Solve for x
    x = 303,400,053,573.32/633,511.62
  6. Step 6: Final answer
    x = 478,917.90

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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.