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Finding the Fourth Proportional to 591,314.40, 886,971.60 and 404,690.40

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Solution

The fourth proportional to 591,314.40, 886,971.60 and 404,690.40 is: 607,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,314.40 : 886,971.60 = 404,690.40 : x
  2. Step 2: Convert to fraction form
    591,314.40/886,971.60 = 404,690.40/x
  3. Step 3: Cross multiply
    591,314.40x = 886,971.60 × 404,690.40
  4. Step 4: Simplify right side
    591,314.40x = 358,948,891,592.64
  5. Step 5: Solve for x
    x = 358,948,891,592.64/591,314.40
  6. Step 6: Final answer
    x = 607,035.60

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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.