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Finding the Fourth Proportional to 343,863.32, 474,509.50 and 190,904.54

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Solution

The fourth proportional to 343,863.32, 474,509.50 and 190,904.54 is: 263,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,863.32 : 474,509.50 = 190,904.54 : x
  2. Step 2: Convert to fraction form
    343,863.32/474,509.50 = 190,904.54/x
  3. Step 3: Cross multiply
    343,863.32x = 474,509.50 × 190,904.54
  4. Step 4: Simplify right side
    343,863.32x = 90,586,017,823.13
  5. Step 5: Solve for x
    x = 90,586,017,823.13/343,863.32
  6. Step 6: Final answer
    x = 263,436.12

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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.