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Finding the Fourth Proportional to 404,436.20, 607,820.70 and 353,114.60

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Solution

The fourth proportional to 404,436.20, 607,820.70 and 353,114.60 is: 530,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,436.20 : 607,820.70 = 353,114.60 : x
  2. Step 2: Convert to fraction form
    404,436.20/607,820.70 = 353,114.60/x
  3. Step 3: Cross multiply
    404,436.20x = 607,820.70 × 353,114.60
  4. Step 4: Simplify right side
    404,436.20x = 214,630,363,352.22
  5. Step 5: Solve for x
    x = 214,630,363,352.22/404,436.20
  6. Step 6: Final answer
    x = 530,690.29

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1.5x scale

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.