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Finding the Fourth Proportional to 606,669.20, 909,566.40 and 396,425.60

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Solution

The fourth proportional to 606,669.20, 909,566.40 and 396,425.60 is: 594,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,669.20 : 909,566.40 = 396,425.60 : x
  2. Step 2: Convert to fraction form
    606,669.20/909,566.40 = 396,425.60/x
  3. Step 3: Cross multiply
    606,669.20x = 909,566.40 × 396,425.60
  4. Step 4: Simplify right side
    606,669.20x = 360,575,405,859.84
  5. Step 5: Solve for x
    x = 360,575,405,859.84/606,669.20
  6. Step 6: Final answer
    x = 594,352.58

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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.