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Finding the Fourth Proportional to 461,445.12, 636,809.52 and 267,838.32

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Solution

The fourth proportional to 461,445.12, 636,809.52 and 267,838.32 is: 369,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,445.12 : 636,809.52 = 267,838.32 : x
  2. Step 2: Convert to fraction form
    461,445.12/636,809.52 = 267,838.32/x
  3. Step 3: Cross multiply
    461,445.12x = 636,809.52 × 267,838.32
  4. Step 4: Simplify right side
    461,445.12x = 170,561,991,996.81
  5. Step 5: Solve for x
    x = 170,561,991,996.81/461,445.12
  6. Step 6: Final answer
    x = 369,625.74

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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.