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Finding the Fourth Proportional to 691,558.94, 954,354.36 and 385,634.36

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Solution

The fourth proportional to 691,558.94, 954,354.36 and 385,634.36 is: 532,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,558.94 : 954,354.36 = 385,634.36 : x
  2. Step 2: Convert to fraction form
    691,558.94/954,354.36 = 385,634.36/x
  3. Step 3: Cross multiply
    691,558.94x = 954,354.36 × 385,634.36
  4. Step 4: Simplify right side
    691,558.94x = 368,031,832,831.81
  5. Step 5: Solve for x
    x = 368,031,832,831.81/691,558.94
  6. Step 6: Final answer
    x = 532,177.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.