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Finding the Fourth Proportional to 404,873.24, 607,678.40 and 215,492.60

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Solution

The fourth proportional to 404,873.24, 607,678.40 and 215,492.60 is: 323,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,873.24 : 607,678.40 = 215,492.60 : x
  2. Step 2: Convert to fraction form
    404,873.24/607,678.40 = 215,492.60/x
  3. Step 3: Cross multiply
    404,873.24x = 607,678.40 × 215,492.60
  4. Step 4: Simplify right side
    404,873.24x = 130,950,200,437.77
  5. Step 5: Solve for x
    x = 130,950,200,437.77/404,873.24
  6. Step 6: Final answer
    x = 323,435.06

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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.