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Finding the Fourth Proportional to 352,602.32, 529,113.66 and 127,980.32

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Solution

The fourth proportional to 352,602.32, 529,113.66 and 127,980.32 is: 192,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,602.32 : 529,113.66 = 127,980.32 : x
  2. Step 2: Convert to fraction form
    352,602.32/529,113.66 = 127,980.32/x
  3. Step 3: Cross multiply
    352,602.32x = 529,113.66 × 127,980.32
  4. Step 4: Simplify right side
    352,602.32x = 67,716,135,523.17
  5. Step 5: Solve for x
    x = 67,716,135,523.17/352,602.32
  6. Step 6: Final answer
    x = 192,046.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.