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Finding the Fourth Proportional to 613,141.44, 919,093.89 and 385,599.67

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Solution

The fourth proportional to 613,141.44, 919,093.89 and 385,599.67 is: 578,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,141.44 : 919,093.89 = 385,599.67 : x
  2. Step 2: Convert to fraction form
    613,141.44/919,093.89 = 385,599.67/x
  3. Step 3: Cross multiply
    613,141.44x = 919,093.89 × 385,599.67
  4. Step 4: Simplify right side
    613,141.44x = 354,402,299,831.28
  5. Step 5: Solve for x
    x = 354,402,299,831.28/613,141.44
  6. Step 6: Final answer
    x = 578,010.68

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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.