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Finding the Fourth Proportional to 699,534.44, 965,401.53 and 423,916.43

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Solution

The fourth proportional to 699,534.44, 965,401.53 and 423,916.43 is: 585,031.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,534.44 : 965,401.53 = 423,916.43 : x
  2. Step 2: Convert to fraction form
    699,534.44/965,401.53 = 423,916.43/x
  3. Step 3: Cross multiply
    699,534.44x = 965,401.53 × 423,916.43
  4. Step 4: Simplify right side
    699,534.44x = 409,249,565,287.13
  5. Step 5: Solve for x
    x = 409,249,565,287.13/699,534.44
  6. Step 6: Final answer
    x = 585,031.34

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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.