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Finding the Fourth Proportional to 965,448.60, 1,448,345.70 and 404,539.80

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Solution

The fourth proportional to 965,448.60, 1,448,345.70 and 404,539.80 is: 606,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,448.60 : 1,448,345.70 = 404,539.80 : x
  2. Step 2: Convert to fraction form
    965,448.60/1,448,345.70 = 404,539.80/x
  3. Step 3: Cross multiply
    965,448.60x = 1,448,345.70 × 404,539.80
  4. Step 4: Simplify right side
    965,448.60x = 585,913,479,808.86
  5. Step 5: Solve for x
    x = 585,913,479,808.86/965,448.60
  6. Step 6: Final answer
    x = 606,882.11

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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.