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Finding the Fourth Proportional to 395,340.90, 593,012.56 and 95,820.32

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Solution

The fourth proportional to 395,340.90, 593,012.56 and 95,820.32 is: 143,730.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,340.90 : 593,012.56 = 95,820.32 : x
  2. Step 2: Convert to fraction form
    395,340.90/593,012.56 = 95,820.32/x
  3. Step 3: Cross multiply
    395,340.90x = 593,012.56 × 95,820.32
  4. Step 4: Simplify right side
    395,340.90x = 56,822,653,263.22
  5. Step 5: Solve for x
    x = 56,822,653,263.22/395,340.90
  6. Step 6: Final answer
    x = 143,730.77

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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.