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Finding the Fourth Proportional to 352,940.40, 528,827.40 and 300,452.40

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Solution

The fourth proportional to 352,940.40, 528,827.40 and 300,452.40 is: 450,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,940.40 : 528,827.40 = 300,452.40 : x
  2. Step 2: Convert to fraction form
    352,940.40/528,827.40 = 300,452.40/x
  3. Step 3: Cross multiply
    352,940.40x = 528,827.40 × 300,452.40
  4. Step 4: Simplify right side
    352,940.40x = 158,887,461,515.76
  5. Step 5: Solve for x
    x = 158,887,461,515.76/352,940.40
  6. Step 6: Final answer
    x = 450,182.13

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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.