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Finding the Fourth Proportional to 669,369.48, 923,725.62 and 382,894.32

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Solution

The fourth proportional to 669,369.48, 923,725.62 and 382,894.32 is: 528,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,369.48 : 923,725.62 = 382,894.32 : x
  2. Step 2: Convert to fraction form
    669,369.48/923,725.62 = 382,894.32/x
  3. Step 3: Cross multiply
    669,369.48x = 923,725.62 × 382,894.32
  4. Step 4: Simplify right side
    669,369.48x = 353,689,293,136.48
  5. Step 5: Solve for x
    x = 353,689,293,136.48/669,369.48
  6. Step 6: Final answer
    x = 528,391.72

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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.