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Finding the Fourth Proportional to 614,505.51, 921,758.25 and 193,814.19

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Solution

The fourth proportional to 614,505.51, 921,758.25 and 193,814.19 is: 290,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,505.51 : 921,758.25 = 193,814.19 : x
  2. Step 2: Convert to fraction form
    614,505.51/921,758.25 = 193,814.19/x
  3. Step 3: Cross multiply
    614,505.51x = 921,758.25 × 193,814.19
  4. Step 4: Simplify right side
    614,505.51x = 178,649,828,599.57
  5. Step 5: Solve for x
    x = 178,649,828,599.57/614,505.51
  6. Step 6: Final answer
    x = 290,721.28

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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.