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Finding the Fourth Proportional to 528,569.44, 729,408.72 and 295,996.72

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Solution

The fourth proportional to 528,569.44, 729,408.72 and 295,996.72 is: 408,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,569.44 : 729,408.72 = 295,996.72 : x
  2. Step 2: Convert to fraction form
    528,569.44/729,408.72 = 295,996.72/x
  3. Step 3: Cross multiply
    528,569.44x = 729,408.72 × 295,996.72
  4. Step 4: Simplify right side
    528,569.44x = 215,902,588,659.40
  5. Step 5: Solve for x
    x = 215,902,588,659.40/528,569.44
  6. Step 6: Final answer
    x = 408,465.89

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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.