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Finding the Fourth Proportional to 341,805.12, 471,698.40 and 190,902.40

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Solution

The fourth proportional to 341,805.12, 471,698.40 and 190,902.40 is: 263,449.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,805.12 : 471,698.40 = 190,902.40 : x
  2. Step 2: Convert to fraction form
    341,805.12/471,698.40 = 190,902.40/x
  3. Step 3: Cross multiply
    341,805.12x = 471,698.40 × 190,902.40
  4. Step 4: Simplify right side
    341,805.12x = 90,048,356,636.16
  5. Step 5: Solve for x
    x = 90,048,356,636.16/341,805.12
  6. Step 6: Final answer
    x = 263,449.41

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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.