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Finding the Fourth Proportional to 525,674.60, 788,577.53 and 205,785.17

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Solution

The fourth proportional to 525,674.60, 788,577.53 and 205,785.17 is: 308,703.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,674.60 : 788,577.53 = 205,785.17 : x
  2. Step 2: Convert to fraction form
    525,674.60/788,577.53 = 205,785.17/x
  3. Step 3: Cross multiply
    525,674.60x = 788,577.53 × 205,785.17
  4. Step 4: Simplify right side
    525,674.60x = 162,277,556,097.42
  5. Step 5: Solve for x
    x = 162,277,556,097.42/525,674.60
  6. Step 6: Final answer
    x = 308,703.44

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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.