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Finding the Fourth Proportional to 606,034.64, 909,319.75 and 317,777.45

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Solution

The fourth proportional to 606,034.64, 909,319.75 and 317,777.45 is: 476,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,034.64 : 909,319.75 = 317,777.45 : x
  2. Step 2: Convert to fraction form
    606,034.64/909,319.75 = 317,777.45/x
  3. Step 3: Cross multiply
    606,034.64x = 909,319.75 × 317,777.45
  4. Step 4: Simplify right side
    606,034.64x = 288,961,306,048.60
  5. Step 5: Solve for x
    x = 288,961,306,048.60/606,034.64
  6. Step 6: Final answer
    x = 476,806.58

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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.