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Finding the Fourth Proportional to 382,964.94, 528,554.75 and 292,149.45

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Solution

The fourth proportional to 382,964.94, 528,554.75 and 292,149.45 is: 403,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,964.94 : 528,554.75 = 292,149.45 : x
  2. Step 2: Convert to fraction form
    382,964.94/528,554.75 = 292,149.45/x
  3. Step 3: Cross multiply
    382,964.94x = 528,554.75 × 292,149.45
  4. Step 4: Simplify right side
    382,964.94x = 154,416,978,046.64
  5. Step 5: Solve for x
    x = 154,416,978,046.64/382,964.94
  6. Step 6: Final answer
    x = 403,214.40

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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.