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Finding the Fourth Proportional to 696,252, 960,828.72 and 394,466.40

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Solution

The fourth proportional to 696,252, 960,828.72 and 394,466.40 is: 544,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,252 : 960,828.72 = 394,466.40 : x
  2. Step 2: Convert to fraction form
    696,252/960,828.72 = 394,466.40/x
  3. Step 3: Cross multiply
    696,252x = 960,828.72 × 394,466.40
  4. Step 4: Simplify right side
    696,252x = 379,014,646,195.01
  5. Step 5: Solve for x
    x = 379,014,646,195.01/696,252
  6. Step 6: Final answer
    x = 544,364.18

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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.