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Finding the Fourth Proportional to 693,065.70, 956,072.43 and 438,564.51

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Solution

The fourth proportional to 693,065.70, 956,072.43 and 438,564.51 is: 604,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,065.70 : 956,072.43 = 438,564.51 : x
  2. Step 2: Convert to fraction form
    693,065.70/956,072.43 = 438,564.51/x
  3. Step 3: Cross multiply
    693,065.70x = 956,072.43 × 438,564.51
  4. Step 4: Simplify right side
    693,065.70x = 419,299,436,787.46
  5. Step 5: Solve for x
    x = 419,299,436,787.46/693,065.70
  6. Step 6: Final answer
    x = 604,992.34

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1.5x scale

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.