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Finding the Fourth Proportional to 614,578.96, 921,868.40 and 193,887.64

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Solution

The fourth proportional to 614,578.96, 921,868.40 and 193,887.64 is: 290,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,578.96 : 921,868.40 = 193,887.64 : x
  2. Step 2: Convert to fraction form
    614,578.96/921,868.40 = 193,887.64/x
  3. Step 3: Cross multiply
    614,578.96x = 921,868.40 × 193,887.64
  4. Step 4: Simplify right side
    614,578.96x = 178,738,888,466.58
  5. Step 5: Solve for x
    x = 178,738,888,466.58/614,578.96
  6. Step 6: Final answer
    x = 290,831.45

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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.