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Finding the Fourth Proportional to 281,694, 388,618.92 and 174,077.40

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Solution

The fourth proportional to 281,694, 388,618.92 and 174,077.40 is: 240,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,694 : 388,618.92 = 174,077.40 : x
  2. Step 2: Convert to fraction form
    281,694/388,618.92 = 174,077.40/x
  3. Step 3: Cross multiply
    281,694x = 388,618.92 × 174,077.40
  4. Step 4: Simplify right side
    281,694x = 67,649,771,184.41
  5. Step 5: Solve for x
    x = 67,649,771,184.41/281,694
  6. Step 6: Final answer
    x = 240,153.40

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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.