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Finding the Fourth Proportional to 416,775.60, 623,383.02 and 347,968.80

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Solution

The fourth proportional to 416,775.60, 623,383.02 and 347,968.80 is: 520,466.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,775.60 : 623,383.02 = 347,968.80 : x
  2. Step 2: Convert to fraction form
    416,775.60/623,383.02 = 347,968.80/x
  3. Step 3: Cross multiply
    416,775.60x = 623,383.02 × 347,968.80
  4. Step 4: Simplify right side
    416,775.60x = 216,917,841,409.78
  5. Step 5: Solve for x
    x = 216,917,841,409.78/416,775.60
  6. Step 6: Final answer
    x = 520,466.75

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1.5x scale

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.