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Finding the Fourth Proportional to 268,237.60, 402,356.40 and 264,090.40

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Solution

The fourth proportional to 268,237.60, 402,356.40 and 264,090.40 is: 396,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,237.60 : 402,356.40 = 264,090.40 : x
  2. Step 2: Convert to fraction form
    268,237.60/402,356.40 = 264,090.40/x
  3. Step 3: Cross multiply
    268,237.60x = 402,356.40 × 264,090.40
  4. Step 4: Simplify right side
    268,237.60x = 106,258,462,618.56
  5. Step 5: Solve for x
    x = 106,258,462,618.56/268,237.60
  6. Step 6: Final answer
    x = 396,135.60

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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.