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Finding the Fourth Proportional to 314,770.32, 434,382.84 and 171,530.28

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Solution

The fourth proportional to 314,770.32, 434,382.84 and 171,530.28 is: 236,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,770.32 : 434,382.84 = 171,530.28 : x
  2. Step 2: Convert to fraction form
    314,770.32/434,382.84 = 171,530.28/x
  3. Step 3: Cross multiply
    314,770.32x = 434,382.84 × 171,530.28
  4. Step 4: Simplify right side
    314,770.32x = 74,509,810,172.40
  5. Step 5: Solve for x
    x = 74,509,810,172.40/314,770.32
  6. Step 6: Final answer
    x = 236,711.68

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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.