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Finding the Fourth Proportional to 762,256.64, 1,051,907 and 418,085.52

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Solution

The fourth proportional to 762,256.64, 1,051,907 and 418,085.52 is: 576,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,256.64 : 1,051,907 = 418,085.52 : x
  2. Step 2: Convert to fraction form
    762,256.64/1,051,907 = 418,085.52/x
  3. Step 3: Cross multiply
    762,256.64x = 1,051,907 × 418,085.52
  4. Step 4: Simplify right side
    762,256.64x = 439,787,085,086.64
  5. Step 5: Solve for x
    x = 439,787,085,086.64/762,256.64
  6. Step 6: Final answer
    x = 576,954.09

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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.