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Finding the Fourth Proportional to 614,509.44, 921,764.16 and 193,818.12

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Solution

The fourth proportional to 614,509.44, 921,764.16 and 193,818.12 is: 290,727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,509.44 : 921,764.16 = 193,818.12 : x
  2. Step 2: Convert to fraction form
    614,509.44/921,764.16 = 193,818.12/x
  3. Step 3: Cross multiply
    614,509.44x = 921,764.16 × 193,818.12
  4. Step 4: Simplify right side
    614,509.44x = 178,654,596,574.58
  5. Step 5: Solve for x
    x = 178,654,596,574.58/614,509.44
  6. Step 6: Final answer
    x = 290,727.18

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Similar ratio
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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.