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Finding the Fourth Proportional to 556,978.40, 835,249.65 and 197,010.15

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Solution

The fourth proportional to 556,978.40, 835,249.65 and 197,010.15 is: 295,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,978.40 : 835,249.65 = 197,010.15 : x
  2. Step 2: Convert to fraction form
    556,978.40/835,249.65 = 197,010.15/x
  3. Step 3: Cross multiply
    556,978.40x = 835,249.65 × 197,010.15
  4. Step 4: Simplify right side
    556,978.40x = 164,552,658,833.95
  5. Step 5: Solve for x
    x = 164,552,658,833.95/556,978.40
  6. Step 6: Final answer
    x = 295,438.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.