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Finding the Fourth Proportional to 614,126.94, 921,190.41 and 239,887.50

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Solution

The fourth proportional to 614,126.94, 921,190.41 and 239,887.50 is: 359,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,126.94 : 921,190.41 = 239,887.50 : x
  2. Step 2: Convert to fraction form
    614,126.94/921,190.41 = 239,887.50/x
  3. Step 3: Cross multiply
    614,126.94x = 921,190.41 × 239,887.50
  4. Step 4: Simplify right side
    614,126.94x = 220,982,064,478.88
  5. Step 5: Solve for x
    x = 220,982,064,478.88/614,126.94
  6. Step 6: Final answer
    x = 359,831.25

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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.