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Finding the Fourth Proportional to 606,559.60, 910,033.80 and 407,105.20

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Solution

The fourth proportional to 606,559.60, 910,033.80 and 407,105.20 is: 610,788.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,559.60 : 910,033.80 = 407,105.20 : x
  2. Step 2: Convert to fraction form
    606,559.60/910,033.80 = 407,105.20/x
  3. Step 3: Cross multiply
    606,559.60x = 910,033.80 × 407,105.20
  4. Step 4: Simplify right side
    606,559.60x = 370,479,492,155.76
  5. Step 5: Solve for x
    x = 370,479,492,155.76/606,559.60
  6. Step 6: Final answer
    x = 610,788.28

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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.