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Finding the Fourth Proportional to 708,805.20, 1,063,207.80 and 235,563.60

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Solution

The fourth proportional to 708,805.20, 1,063,207.80 and 235,563.60 is: 353,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,805.20 : 1,063,207.80 = 235,563.60 : x
  2. Step 2: Convert to fraction form
    708,805.20/1,063,207.80 = 235,563.60/x
  3. Step 3: Cross multiply
    708,805.20x = 1,063,207.80 × 235,563.60
  4. Step 4: Simplify right side
    708,805.20x = 250,453,056,916.08
  5. Step 5: Solve for x
    x = 250,453,056,916.08/708,805.20
  6. Step 6: Final answer
    x = 353,345.40

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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.