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Finding the Fourth Proportional to 656,518.60, 906,743 and 441,284.99

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Solution

The fourth proportional to 656,518.60, 906,743 and 441,284.99 is: 609,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,518.60 : 906,743 = 441,284.99 : x
  2. Step 2: Convert to fraction form
    656,518.60/906,743 = 441,284.99/x
  3. Step 3: Cross multiply
    656,518.60x = 906,743 × 441,284.99
  4. Step 4: Simplify right side
    656,518.60x = 400,132,075,687.57
  5. Step 5: Solve for x
    x = 400,132,075,687.57/656,518.60
  6. Step 6: Final answer
    x = 609,475.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.