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Finding the Fourth Proportional to 343,772.64, 474,434.82 and 190,825.20

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Solution

The fourth proportional to 343,772.64, 474,434.82 and 190,825.20 is: 263,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,772.64 : 474,434.82 = 190,825.20 : x
  2. Step 2: Convert to fraction form
    343,772.64/474,434.82 = 190,825.20/x
  3. Step 3: Cross multiply
    343,772.64x = 474,434.82 × 190,825.20
  4. Step 4: Simplify right side
    343,772.64x = 90,534,119,413.46
  5. Step 5: Solve for x
    x = 90,534,119,413.46/343,772.64
  6. Step 6: Final answer
    x = 263,354.64

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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.