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Finding the Fourth Proportional to 395,655.60, 593,483.40 and 185,703.60

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Solution

The fourth proportional to 395,655.60, 593,483.40 and 185,703.60 is: 278,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,655.60 : 593,483.40 = 185,703.60 : x
  2. Step 2: Convert to fraction form
    395,655.60/593,483.40 = 185,703.60/x
  3. Step 3: Cross multiply
    395,655.60x = 593,483.40 × 185,703.60
  4. Step 4: Simplify right side
    395,655.60x = 110,212,003,920.24
  5. Step 5: Solve for x
    x = 110,212,003,920.24/395,655.60
  6. Step 6: Final answer
    x = 278,555.40

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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.