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Finding the Fourth Proportional to 455,859.90, 682,805.70 and 296,427.60

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Solution

The fourth proportional to 455,859.90, 682,805.70 and 296,427.60 is: 444,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,859.90 : 682,805.70 = 296,427.60 : x
  2. Step 2: Convert to fraction form
    455,859.90/682,805.70 = 296,427.60/x
  3. Step 3: Cross multiply
    455,859.90x = 682,805.70 × 296,427.60
  4. Step 4: Simplify right side
    455,859.90x = 202,402,454,917.32
  5. Step 5: Solve for x
    x = 202,402,454,917.32/455,859.90
  6. Step 6: Final answer
    x = 444,001.45

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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.