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Finding the Fourth Proportional to 469,787.60, 648,303.60 and 254,922.16

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Solution

The fourth proportional to 469,787.60, 648,303.60 and 254,922.16 is: 351,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,787.60 : 648,303.60 = 254,922.16 : x
  2. Step 2: Convert to fraction form
    469,787.60/648,303.60 = 254,922.16/x
  3. Step 3: Cross multiply
    469,787.60x = 648,303.60 × 254,922.16
  4. Step 4: Simplify right side
    469,787.60x = 165,266,954,047.78
  5. Step 5: Solve for x
    x = 165,266,954,047.78/469,787.60
  6. Step 6: Final answer
    x = 351,790.80

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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.