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Finding the Fourth Proportional to 633,783.02, 874,641.87 and 347,300.60

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Solution

The fourth proportional to 633,783.02, 874,641.87 and 347,300.60 is: 479,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,783.02 : 874,641.87 = 347,300.60 : x
  2. Step 2: Convert to fraction form
    633,783.02/874,641.87 = 347,300.60/x
  3. Step 3: Cross multiply
    633,783.02x = 874,641.87 × 347,300.60
  4. Step 4: Simplify right side
    633,783.02x = 303,763,641,862.91
  5. Step 5: Solve for x
    x = 303,763,641,862.91/633,783.02
  6. Step 6: Final answer
    x = 479,286.50

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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.