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Finding the Fourth Proportional to 343,803.64, 474,441.54 and 190,832.92

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Solution

The fourth proportional to 343,803.64, 474,441.54 and 190,832.92 is: 263,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,803.64 : 474,441.54 = 190,832.92 : x
  2. Step 2: Convert to fraction form
    343,803.64/474,441.54 = 190,832.92/x
  3. Step 3: Cross multiply
    343,803.64x = 474,441.54 × 190,832.92
  4. Step 4: Simplify right side
    343,803.64x = 90,539,064,447.50
  5. Step 5: Solve for x
    x = 90,539,064,447.50/343,803.64
  6. Step 6: Final answer
    x = 263,345.28

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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.