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Finding the Fourth Proportional to 382,566.80, 528,043.56 and 269,440.40

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Solution

The fourth proportional to 382,566.80, 528,043.56 and 269,440.40 is: 371,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,566.80 : 528,043.56 = 269,440.40 : x
  2. Step 2: Convert to fraction form
    382,566.80/528,043.56 = 269,440.40/x
  3. Step 3: Cross multiply
    382,566.80x = 528,043.56 × 269,440.40
  4. Step 4: Simplify right side
    382,566.80x = 142,276,268,023.82
  5. Step 5: Solve for x
    x = 142,276,268,023.82/382,566.80
  6. Step 6: Final answer
    x = 371,899.15

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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.