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Finding the Fourth Proportional to 395,315.37, 546,454.49 and 352,717.00

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Solution

The fourth proportional to 395,315.37, 546,454.49 and 352,717.00 is: 487,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,315.37 : 546,454.49 = 352,717.00 : x
  2. Step 2: Convert to fraction form
    395,315.37/546,454.49 = 352,717.00/x
  3. Step 3: Cross multiply
    395,315.37x = 546,454.49 × 352,717.00
  4. Step 4: Simplify right side
    395,315.37x = 192,743,785,219.61
  5. Step 5: Solve for x
    x = 192,743,785,219.61/395,315.37
  6. Step 6: Final answer
    x = 487,569.67

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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.