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Finding the Fourth Proportional to 484,793.12, 727,239.34 and 185,525.40

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Solution

The fourth proportional to 484,793.12, 727,239.34 and 185,525.40 is: 278,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,793.12 : 727,239.34 = 185,525.40 : x
  2. Step 2: Convert to fraction form
    484,793.12/727,239.34 = 185,525.40/x
  3. Step 3: Cross multiply
    484,793.12x = 727,239.34 × 185,525.40
  4. Step 4: Simplify right side
    484,793.12x = 134,921,369,449.24
  5. Step 5: Solve for x
    x = 134,921,369,449.24/484,793.12
  6. Step 6: Final answer
    x = 278,307.10

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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.